Adding upstream version 1.12.0.upstream/1.12.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2019-02-08 07:30:37 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2019-02-08 07:30:37 +0000
commit: 8a7b72f7cd1ccd547a03eb4243294e741d661d3f (patch)
tree: 7bc7be4a8e9e298daa1349348400aa2a653866f2 /collectors/charts.d.plugin
parent: New upstream version 1.11.1+dfsg (diff)
download: netdata-8a7b72f7cd1ccd547a03eb4243294e741d661d3f.tar.xz
netdata-8a7b72f7cd1ccd547a03eb4243294e741d661d3f.zip
48 files changed, 1131 insertions, 2930 deletions
diff --git a/collectors/charts.d.plugin/.keep b/collectors/charts.d.plugin/.keep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/collectors/charts.d.plugin/.keep
diff --git a/collectors/charts.d.plugin/Makefile.am b/collectors/charts.d.plugin/Makefile.am
index e2e00258f..2989b4b8d 100644
--- a/collectors/charts.d.plugin/Makefile.am
+++ b/collectors/charts.d.plugin/Makefile.am
@@ -32,12 +32,11 @@ dist_charts_DATA = \
 
 userchartsconfigdir=$(configdir)/charts.d
 dist_userchartsconfig_DATA = \
-    $(top_srcdir)/installer/.keep \
+    .keep \
     $(NULL)
 
 chartsconfigdir=$(libconfigdir)/charts.d
 dist_chartsconfig_DATA = \
-    $(top_srcdir)/installer/.keep \
     $(NULL)
 
 include ap/Makefile.inc
diff --git a/collectors/charts.d.plugin/Makefile.in b/collectors/charts.d.plugin/Makefile.in
deleted file mode 100644
index 23e2edebb..000000000
--- a/collectors/charts.d.plugin/Makefile.in
+++ /dev/null
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-	exim/Makefile.inc hddtemp/README.md hddtemp/Makefile.inc \
-	libreswan/README.md libreswan/Makefile.inc \
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-dist_charts_SCRIPTS = \
-    $(NULL)
-
-
-# install these files
-
-# install these files
-
-# install these files
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-# install these files
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-# install these files
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-# install these files
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-# install these files
-dist_charts_DATA = $(NULL) ap/ap.chart.sh apache/apache.chart.sh \
-	apcupsd/apcupsd.chart.sh cpu_apps/cpu_apps.chart.sh \
-	cpufreq/cpufreq.chart.sh example/example.chart.sh \
-	exim/exim.chart.sh hddtemp/hddtemp.chart.sh \
-	libreswan/libreswan.chart.sh \
-	load_average/load_average.chart.sh mem_apps/mem_apps.chart.sh \
-	mysql/mysql.chart.sh nginx/nginx.chart.sh nut/nut.chart.sh \
-	opensips/opensips.chart.sh phpfpm/phpfpm.chart.sh \
-	postfix/postfix.chart.sh sensors/sensors.chart.sh \
-	squid/squid.chart.sh tomcat/tomcat.chart.sh
-userchartsconfigdir = $(configdir)/charts.d
-dist_userchartsconfig_DATA = \
-    $(top_srcdir)/installer/.keep \
-    $(NULL)
-
-chartsconfigdir = $(libconfigdir)/charts.d
-dist_chartsconfig_DATA = $(top_srcdir)/installer/.keep $(NULL) \
-	ap/ap.conf apache/apache.conf apcupsd/apcupsd.conf \
-	cpu_apps/cpu_apps.conf cpufreq/cpufreq.conf \
-	example/example.conf exim/exim.conf hddtemp/hddtemp.conf \
-	libreswan/libreswan.conf load_average/load_average.conf \
-	mem_apps/mem_apps.conf mysql/mysql.conf nginx/nginx.conf \
-	nut/nut.conf opensips/opensips.conf phpfpm/phpfpm.conf \
-	postfix/postfix.conf sensors/sensors.conf squid/squid.conf \
-	tomcat/tomcat.conf
-all: all-am
-
-.SUFFIXES:
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-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/build/subst.inc $(srcdir)/ap/Makefile.inc $(srcdir)/apache/Makefile.inc $(srcdir)/apcupsd/Makefile.inc $(srcdir)/cpu_apps/Makefile.inc $(srcdir)/cpufreq/Makefile.inc $(srcdir)/example/Makefile.inc $(srcdir)/exim/Makefile.inc $(srcdir)/hddtemp/Makefile.inc $(srcdir)/libreswan/Makefile.inc $(srcdir)/load_average/Makefile.inc $(srcdir)/mem_apps/Makefile.inc $(srcdir)/mysql/Makefile.inc $(srcdir)/nginx/Makefile.inc $(srcdir)/nut/Makefile.inc $(srcdir)/opensips/Makefile.inc $(srcdir)/phpfpm/Makefile.inc $(srcdir)/postfix/Makefile.inc $(srcdir)/sensors/Makefile.inc $(srcdir)/squid/Makefile.inc $(srcdir)/tomcat/Makefile.inc $(am__configure_deps)
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-	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu collectors/charts.d.plugin/Makefile'; \
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-	  $(AUTOMAKE) --gnu collectors/charts.d.plugin/Makefile
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-	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
-$(am__aclocal_m4_deps):
-install-dist_chartsSCRIPTS: $(dist_charts_SCRIPTS)
-	@$(NORMAL_INSTALL)
-	@list='$(dist_charts_SCRIPTS)'; test -n "$(chartsdir)" || list=; \
-	if test -n "$$list"; then \
-	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsdir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(chartsdir)" || exit 1; \
-	fi; \
-	for p in $$list; do \
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-	while read type dir files; do \
-	     if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
-	     test -z "$$files" || { \
-	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(chartsdir)$$dir'"; \
-	       $(INSTALL_SCRIPT) $$files "$(DESTDIR)$(chartsdir)$$dir" || exit $$?; \
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-
-uninstall-dist_chartsSCRIPTS:
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-	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1; } \
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-	while read type dir files; do \
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-	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(pluginsdir)$$dir'"; \
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-	dir='$(DESTDIR)$(pluginsdir)'; $(am__uninstall_files_from_dir)
-install-dist_chartsDATA: $(dist_charts_DATA)
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-	if test -n "$$list"; then \
-	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsdir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(chartsdir)" || exit 1; \
-	fi; \
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-	done
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-	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsconfigdir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(chartsconfigdir)" || exit 1; \
-	fi; \
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-	done
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-	if test -n "$$list"; then \
-	  echo " $(MKDIR_P) '$(DESTDIR)$(userchartsconfigdir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(userchartsconfigdir)" || exit 1; \
-	fi; \
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-	done
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diff --git a/collectors/charts.d.plugin/README.md b/collectors/charts.d.plugin/README.md
index b224bffe3..3d318f26c 100644
--- a/collectors/charts.d.plugin/README.md
+++ b/collectors/charts.d.plugin/README.md
@@ -191,3 +191,5 @@ This is what you need to do:
 Execute the above in this order, since netdata will (by default) attempt to start new plugins soon after they are
 created in `/usr/libexec/netdata/plugins.d/`.
 
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/ap/README.md b/collectors/charts.d.plugin/ap/README.md
index eb4e80707..962a8565e 100644
--- a/collectors/charts.d.plugin/ap/README.md
+++ b/collectors/charts.d.plugin/ap/README.md
@@ -82,3 +82,5 @@ To edit this file on your system run `/etc/netdata/edit-config charts.d/ap.conf`
 ## Auto-detection
 
 The plugin is able to auto-detect if you are running access points on your linux box.
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fap%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/ap/ap.chart.sh b/collectors/charts.d.plugin/ap/ap.chart.sh
index ccc36120c..a2d04c0a7 100644
--- a/collectors/charts.d.plugin/ap/ap.chart.sh
+++ b/collectors/charts.d.plugin/ap/ap.chart.sh
@@ -56,8 +56,7 @@ ap_check() {
 ap_create() {
 	local ssid dev
 
-	for dev in "${!ap_devs[@]}"
-	do
+	for dev in "${!ap_devs[@]}"; do
 		ssid="${ap_devs[${dev}]}"
 
 		# create the chart with 3 dimensions
@@ -99,14 +98,13 @@ ap_update() {
 	# for each dimension
 	# remember: KEEP IT SIMPLE AND SHORT
 
-	for dev in "${!ap_devs[@]}"
-	do
-	    echo
-	    echo "DEVICE ${dev}"
+	for dev in "${!ap_devs[@]}"; do
+		echo
+		echo "DEVICE ${dev}"
 		iw "${dev}" station dump
-	done | awk "
+	done | awk '
         function zero_data() {
-            dev = \"\";
+            dev = "";
             c = 0;
             rb = 0;
             tb = 0;
@@ -121,32 +119,32 @@ ap_update() {
             e = 0;
         }
         function print_device() {
-            if(dev != \"\" && length(dev) > 0) {
-                print \"BEGIN ap_clients.\" dev;
-                print \"SET clients = \" c;
-                print \"END\";
-                print \"BEGIN ap_bandwidth.\" dev;
-                print \"SET received = \" rb;
-                print \"SET sent = \" tb;
-                print \"END\";
-                print \"BEGIN ap_packets.\" dev;
-                print \"SET received = \" rp;
-                print \"SET sent = \" tp;
-                print \"END\";
-                print \"BEGIN ap_issues.\" dev;
-                print \"SET retries = \" tr;
-                print \"SET failures = \" tf;
-                print \"END\";
+            if(dev != "" && length(dev) > 0) {
+                print "BEGIN ap_clients." dev;
+                print "SET clients = " c;
+                print "END";
+                print "BEGIN ap_bandwidth." dev;
+                print "SET received = " rb;
+                print "SET sent = " tb;
+                print "END";
+                print "BEGIN ap_packets." dev;
+                print "SET received = " rp;
+                print "SET sent = " tp;
+                print "END";
+                print "BEGIN ap_issues." dev;
+                print "SET retries = " tr;
+                print "SET failures = " tf;
+                print "END";
 
                 if( c == 0 ) c = 1;
-                print \"BEGIN ap_signal.\" dev;
-                print \"SET signal = \" int(s / c);
-                print \"END\";
-                print \"BEGIN ap_bitrate.\" dev;
-                print \"SET receive = \" int(rt / c);
-                print \"SET transmit = \" int(tt / c);
-                print \"SET expected = \" int(e / c);
-                print \"END\";
+                print "BEGIN ap_signal." dev;
+                print "SET signal = " int(s / c);
+                print "END";
+                print "BEGIN ap_bitrate." dev;
+                print "SET receive = " int(rt / c);
+                print "SET transmit = " int(tt / c);
+                print "SET expected = " int(e / c);
+                print "END";
             }
             zero_data();
         }
@@ -155,28 +153,27 @@ ap_update() {
         }
         /^DEVICE / {
             print_device();
-            dev = \$2;
+            dev = $2;
         }
         /^Station/            { c++; }
-        /^[ \\t]+rx bytes:/   { rb += \$3; }
-        /^[ \\t]+tx bytes:/   { tb += \$3; }
-        /^[ \\t]+rx packets:/ { rp += \$3; }
-        /^[ \\t]+tx packets:/ { tp += \$3; }
-        /^[ \\t]+tx retries:/ { tr += \$3; }
-        /^[ \\t]+tx failed:/  { tf += \$3; }
-        /^[ \\t]+signal:/     { x = \$2; s  += x * 1000; }
-        /^[ \\t]+rx bitrate:/ { x = \$3; rt += x * 1000; }
-        /^[ \\t]+tx bitrate:/ { x = \$3; tt += x * 1000; }
-        /^[ \\t]+expected throughput:(.*)Mbps/ {
-            x=\$3;
-            sub(/Mbps/, \"\", x);
+        /^[ \t]+rx bytes:/   { rb += $3; }
+        /^[ \t]+tx bytes:/   { tb += $3; }
+        /^[ \t]+rx packets:/ { rp += $3; }
+        /^[ \t]+tx packets:/ { tp += $3; }
+        /^[ \t]+tx retries:/ { tr += $3; }
+        /^[ \t]+tx failed:/  { tf += $3; }
+        /^[ \t]+signal:/     { x = $2; s  += x * 1000; }
+        /^[ \t]+rx bitrate:/ { x = $3; rt += x * 1000; }
+        /^[ \t]+tx bitrate:/ { x = $3; tt += x * 1000; }
+        /^[ \t]+expected throughput:(.*)Mbps/ {
+            x=$3;
+            sub(/Mbps/, "", x);
             e += x * 1000;
         }
         END {
             print_device();
         }
-    "
+    '
 
 	return 0
 }
-
diff --git a/collectors/charts.d.plugin/apache/README.md b/collectors/charts.d.plugin/apache/README.md
index 890cee984..273979107 100644
--- a/collectors/charts.d.plugin/apache/README.md
+++ b/collectors/charts.d.plugin/apache/README.md
@@ -1,10 +1,10 @@
+# Apache
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/apache) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
 
 ---
 
-# Apache Plugin (apache)
-
 The `apache` collector visualizes key performance data for an apache web server.
 
 ## Example netdata charts
@@ -125,3 +125,5 @@ curl "http://127.0.0.1:80/server-status?auto"
 netdata will be able to do it too.
 
 Notice: You may need to have the default `000-default.conf ` website enabled in order for the status mod to work.
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fapache%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/apache/apache.chart.sh b/collectors/charts.d.plugin/apache/apache.chart.sh
index 95876432f..7d09ee676 100644
--- a/collectors/charts.d.plugin/apache/apache.chart.sh
+++ b/collectors/charts.d.plugin/apache/apache.chart.sh
@@ -52,21 +52,20 @@ apache_key_connsasynckeepalive=
 apache_key_connsasyncclosing=
 apache_detect() {
 	local i=0
-	for x in "${@}"
-	do
+	for x in "${@}"; do
 		case "${x}" in
-			'Total Accesses') 		apache_key_accesses=$((i + 1)) ;;
-			'Total kBytes') 		apache_key_kbytes=$((i + 1)) ;;
-			'ReqPerSec') 			apache_key_reqpersec=$((i + 1)) ;;
-			'BytesPerSec')			apache_key_bytespersec=$((i + 1)) ;;
-			'BytesPerReq')			apache_key_bytesperreq=$((i + 1)) ;;
-			'BusyWorkers')			apache_key_busyworkers=$((i + 1)) ;;
-			'IdleWorkers')			apache_key_idleworkers=$((i + 1));;
-			'ConnsTotal')			apache_key_connstotal=$((i + 1)) ;;
-			'ConnsAsyncWriting')	apache_key_connsasyncwriting=$((i + 1)) ;;
-			'ConnsAsyncKeepAlive')	apache_key_connsasynckeepalive=$((i + 1)) ;;
-			'ConnsAsyncClosing')	apache_key_connsasyncclosing=$((i + 1)) ;;
-			'Scoreboard')			apache_key_scoreboard=$((i)) ;;
+		'Total Accesses') apache_key_accesses=$((i + 1)) ;;
+		'Total kBytes') apache_key_kbytes=$((i + 1)) ;;
+		'ReqPerSec') apache_key_reqpersec=$((i + 1)) ;;
+		'BytesPerSec') apache_key_bytespersec=$((i + 1)) ;;
+		'BytesPerReq') apache_key_bytesperreq=$((i + 1)) ;;
+		'BusyWorkers') apache_key_busyworkers=$((i + 1)) ;;
+		'IdleWorkers') apache_key_idleworkers=$((i + 1)) ;;
+		'ConnsTotal') apache_key_connstotal=$((i + 1)) ;;
+		'ConnsAsyncWriting') apache_key_connsasyncwriting=$((i + 1)) ;;
+		'ConnsAsyncKeepAlive') apache_key_connsasynckeepalive=$((i + 1)) ;;
+		'ConnsAsyncClosing') apache_key_connsasyncclosing=$((i + 1)) ;;
+		'Scoreboard') apache_key_scoreboard=$((i)) ;;
 		esac
 
 		i=$((i + 1))
@@ -74,20 +73,19 @@ apache_detect() {
 
 	# we will not check of the Conns*
 	# keys, since these are apache 2.4 specific
-	[ -z "${apache_key_accesses}"    ] && error "missing 'Total Accesses' from apache server: ${*}" && return 1
-	[ -z "${apache_key_kbytes}"      ] && error "missing 'Total kBytes' from apache server: ${*}" && return 1
-	[ -z "${apache_key_reqpersec}"   ] && error "missing 'ReqPerSec' from apache server: ${*}" && return 1
+	[ -z "${apache_key_accesses}" ] && error "missing 'Total Accesses' from apache server: ${*}" && return 1
+	[ -z "${apache_key_kbytes}" ] && error "missing 'Total kBytes' from apache server: ${*}" && return 1
+	[ -z "${apache_key_reqpersec}" ] && error "missing 'ReqPerSec' from apache server: ${*}" && return 1
 	[ -z "${apache_key_bytespersec}" ] && error "missing 'BytesPerSec' from apache server: ${*}" && return 1
 	[ -z "${apache_key_bytesperreq}" ] && error "missing 'BytesPerReq' from apache server: ${*}" && return 1
 	[ -z "${apache_key_busyworkers}" ] && error "missing 'BusyWorkers' from apache server: ${*}" && return 1
 	[ -z "${apache_key_idleworkers}" ] && error "missing 'IdleWorkers' from apache server: ${*}" && return 1
-	[ -z "${apache_key_scoreboard}"  ] && error "missing 'Scoreboard' from apache server: ${*}" && return 1
+	[ -z "${apache_key_scoreboard}" ] && error "missing 'Scoreboard' from apache server: ${*}" && return 1
 
-	if [ ! -z "${apache_key_connstotal}" ] && \
-	   [ ! -z "${apache_key_connsasyncwriting}" ] && \
-	   [ ! -z "${apache_key_connsasynckeepalive}" ] && \
-	   [ ! -z "${apache_key_connsasyncclosing}" ]
-	then
+	if [ ! -z "${apache_key_connstotal}" ] &&
+		[ ! -z "${apache_key_connsasyncwriting}" ] &&
+		[ ! -z "${apache_key_connsasynckeepalive}" ] &&
+		[ ! -z "${apache_key_connsasyncclosing}" ]; then
 		apache_has_conns=1
 	else
 		apache_has_conns=0
@@ -103,15 +101,13 @@ apache_get() {
 	ret=$?
 	IFS="${oIFS}"
 
-	if [ $ret -ne 0 ] || [ "${#apache_response[@]}" -eq 0 ]
-	then
+	if [ $ret -ne 0 ] || [ "${#apache_response[@]}" -eq 0 ]; then
 		return 1
 	fi
 
 	# the last line on the apache output is "Scoreboard"
 	# we use this label to detect that the output has a new word count
-	if [ ${apache_keys_detected} -eq 0 ] || [ "${apache_response[${apache_key_scoreboard}]}" != "Scoreboard" ]
-	then
+	if [ ${apache_keys_detected} -eq 0 ] || [ "${apache_response[${apache_key_scoreboard}]}" != "Scoreboard" ]; then
 		apache_detect "${apache_response[@]}" || return 1
 		apache_keys_detected=1
 	fi
@@ -131,20 +127,20 @@ apache_get() {
 	apache_busyworkers="${apache_response[${apache_key_busyworkers}]}"
 	apache_idleworkers="${apache_response[${apache_key_idleworkers}]}"
 
-	if [ -z "${apache_accesses}" ] || \
-	   [ -z "${apache_kbytes}" ] || \
-	   [ -z "${apache_reqpersec}" ] || \
-	   [ -z "${apache_bytespersec}" ] || \
-	   [ -z "${apache_bytesperreq}" ] || \
-	   [ -z "${apache_busyworkers}" ]
-	   [ -z "${apache_idleworkers}" ]
+	if
+		[ -z "${apache_accesses}" ] ||
+			[ -z "${apache_kbytes}" ] ||
+			[ -z "${apache_reqpersec}" ] ||
+			[ -z "${apache_bytespersec}" ] ||
+			[ -z "${apache_bytesperreq}" ] ||
+			[ -z "${apache_busyworkers}" ]
+		[ -z "${apache_idleworkers}" ]
 	then
 		error "empty values got from apache server: ${apache_response[*]}"
 		return 1
 	fi
 
-	if [ ${apache_has_conns} -eq 1 ]
-	then
+	if [ ${apache_has_conns} -eq 1 ]; then
 		apache_connstotal="${apache_response[${apache_key_connstotal}]}"
 		apache_connsasyncwriting="${apache_response[${apache_key_connsasyncwriting}]}"
 		apache_connsasynckeepalive="${apache_response[${apache_key_connsasynckeepalive}]}"
@@ -159,8 +155,7 @@ apache_check() {
 
 	apache_get
 	# shellcheck disable=2181
-	if [ $? -ne 0 ]
-	then
+	if [ $? -ne 0 ]; then
 		# shellcheck disable=2154
 		error "cannot find stub_status on URL '${apache_url}'. Please set apache_url='http://apache.server:80/server-status?auto' in $confd/apache.conf"
 		return 1
@@ -191,8 +186,7 @@ CHART apache_local.net '' "apache Bandwidth" "kilobits/s" bandwidth apache.net a
 DIMENSION sent '' incremental 8 1
 EOF
 
-	if [ ${apache_has_conns} -eq 1 ]
-	then
+	if [ ${apache_has_conns} -eq 1 ]; then
 		cat <<EOF2
 CHART apache_local.connections '' "apache Connections" "connections" connections apache.connections line $((apache_priority + 2)) $apache_update_every
 DIMENSION connections '' absolute 1 1
@@ -240,9 +234,8 @@ SET busy = $((apache_busyworkers))
 END
 VALUESEOF
 
-	if [ ${apache_has_conns} -eq 1 ]
-	then
-	cat <<VALUESEOF2
+	if [ ${apache_has_conns} -eq 1 ]; then
+		cat <<VALUESEOF2
 BEGIN apache_local.connections $1
 SET connections = $((apache_connstotal))
 END
diff --git a/collectors/charts.d.plugin/apcupsd/README.md b/collectors/charts.d.plugin/apcupsd/README.md
index e69de29bb..59739efcd 100644
--- a/collectors/charts.d.plugin/apcupsd/README.md
+++ b/collectors/charts.d.plugin/apcupsd/README.md
@@ -0,0 +1,7 @@
+# apcupsd
+
+*Under construction*
+
+Collects UPS metrics
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fapcupsd%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/apcupsd/apcupsd.chart.sh b/collectors/charts.d.plugin/apcupsd/apcupsd.chart.sh
index e26ef566a..b4b92cdc5 100644
--- a/collectors/charts.d.plugin/apcupsd/apcupsd.chart.sh
+++ b/collectors/charts.d.plugin/apcupsd/apcupsd.chart.sh
@@ -11,7 +11,7 @@ apcupsd_ip=
 apcupsd_port=
 
 declare -A apcupsd_sources=(
-    ["local"]="127.0.0.1:3551"
+	["local"]="127.0.0.1:3551"
 )
 
 # how frequently to collect UPS data
@@ -35,46 +35,40 @@ apcupsd_check() {
 	require_cmd apcaccess || return 1
 
 	# backwards compatibility
-	if [ "${apcupsd_ip}:${apcupsd_port}" != ":" ]
-	then
-	    apcupsd_sources["local"]="${apcupsd_ip}:${apcupsd_port}"
+	if [ "${apcupsd_ip}:${apcupsd_port}" != ":" ]; then
+		apcupsd_sources["local"]="${apcupsd_ip}:${apcupsd_port}"
 	fi
 
-    local host working=0 failed=0
-    for host in "${!apcupsd_sources[@]}"
-    do
-        run apcupsd_get "${apcupsd_sources[${host}]}" >/dev/null
-        # shellcheck disable=2181
-        if [ $? -ne 0 ]
-        then
-            error "cannot get information for apcupsd server ${host} on ${apcupsd_sources[${host}]}."
-            failed=$((failed + 1))
-        elif [ "$(apcupsd_get "${apcupsd_sources[${host}]}" | awk '/^STATUS.*/{ print $3 }')" != "ONLINE" ]
-        then
-            error "APC UPS ${host} on ${apcupsd_sources[${host}]} is not online."
-            failed=$((failed + 1))
-        else
-            working=$((working + 1))
-        fi
-    done
-
-    if [ ${working} -eq 0 ]
-    then
-        error "No APC UPSes found available."
-        return 1
-    fi
+	local host working=0 failed=0
+	for host in "${!apcupsd_sources[@]}"; do
+		run apcupsd_get "${apcupsd_sources[${host}]}" >/dev/null
+		# shellcheck disable=2181
+		if [ $? -ne 0 ]; then
+			error "cannot get information for apcupsd server ${host} on ${apcupsd_sources[${host}]}."
+			failed=$((failed + 1))
+		elif [ "$(apcupsd_get "${apcupsd_sources[${host}]}" | awk '/^STATUS.*/{ print $3 }')" != "ONLINE" ]; then
+			error "APC UPS ${host} on ${apcupsd_sources[${host}]} is not online."
+			failed=$((failed + 1))
+		else
+			working=$((working + 1))
+		fi
+	done
+
+	if [ ${working} -eq 0 ]; then
+		error "No APC UPSes found available."
+		return 1
+	fi
 
 	return 0
 }
 
 apcupsd_create() {
-    local host src
-    for host in "${!apcupsd_sources[@]}"
-    do
-        src=${apcupsd_sources[${host}]}
+	local host src
+	for host in "${!apcupsd_sources[@]}"; do
+		src=${apcupsd_sources[${host}]}
 
-        # create the charts
-        cat <<EOF
+		# create the charts
+		cat <<EOF
 CHART apcupsd_${host}.charge '' "UPS Charge for ${host} on ${src}" "percentage" ups apcupsd.charge area $((apcupsd_priority + 1)) $apcupsd_update_every
 DIMENSION battery_charge charge absolute 1 100
 
@@ -103,12 +97,14 @@ DIMENSION temp temp absolute 1 100
 CHART apcupsd_${host}.time '' "UPS Time Remaining for ${host} on ${src}" "Minutes" ups apcupsd.time area $((apcupsd_priority + 2)) $apcupsd_update_every
 DIMENSION time time absolute 1 100
 
+CHART apcupsd_${host}.online '' "UPS ONLINE flag for ${host} on ${src}" "boolean" ups apcupsd.online line $((apcupsd_priority + 8)) $apcupsd_update_every
+DIMENSION online online absolute 0 1
+
 EOF
-    done
+	done
 	return 0
 }
 
-
 apcupsd_update() {
 	# the first argument to this function is the microseconds since last update
 	# pass this parameter to the BEGIN statement (see bellow).
@@ -117,10 +113,9 @@ apcupsd_update() {
 	# for each dimension
 	# remember: KEEP IT SIMPLE AND SHORT
 
-    local host working=0 failed=0
-    for host in "${!apcupsd_sources[@]}"
-    do
-    	apcupsd_get "${apcupsd_sources[${host}]}" | awk "
+	local host working=0 failed=0
+	for host in "${!apcupsd_sources[@]}"; do
+		apcupsd_get "${apcupsd_sources[${host}]}" | awk "
 
 BEGIN {
 	battery_charge = 0;
@@ -130,70 +125,76 @@ BEGIN {
 	input_voltage_min = 0;
 	input_voltage_max = 0;
 	input_frequency = 0;
-        output_voltage = 0;
+	output_voltage = 0;
  	output_voltage_nominal = 0;
 	load = 0;
 	temp = 0;
 	time = 0;
 }
-/^BCHARGE.*/		{ battery_charge = \$3 * 100 };
-/^BATTV.*/		{ battery_voltage = \$3 * 100 };
-/^NOMBATTV.*/		{ battery_voltage_nominal = \$3 * 100 };
-/^LINEV.*/		{ input_voltage = \$3 * 100 };
-/^MINLINEV.*/		{ input_voltage_min = \$3 * 100 };
-/^MAXLINEV.*/		{ input_voltage_max = \$3 * 100 };
-/^LINEFREQ.*/		{ input_frequency = \$3 * 100 };
-/^OUTPUTV.*/		{ output_voltage = \$3 * 100 };
-/^NOMOUTV.*/		{ output_voltage_nominal = \$3 * 100 };
-/^LOADPCT.*/		{ load = \$3 * 100 };
-/^ITEMP.*/		{ temp = \$3 * 100 };
-/^TIMELEFT.*/		{ time = \$3 * 100 };
+/^BCHARGE.*/   { battery_charge = \$3 * 100 };
+/^BATTV.*/     { battery_voltage = \$3 * 100 };
+/^NOMBATTV.*/  { battery_voltage_nominal = \$3 * 100 };
+/^LINEV.*/     { input_voltage = \$3 * 100 };
+/^MINLINEV.*/  { input_voltage_min = \$3 * 100 };
+/^MAXLINEV.*/  { input_voltage_max = \$3 * 100 };
+/^LINEFREQ.*/  { input_frequency = \$3 * 100 };
+/^OUTPUTV.*/   { output_voltage = \$3 * 100 };
+/^NOMOUTV.*/   { output_voltage_nominal = \$3 * 100 };
+/^LOADPCT.*/   { load = \$3 * 100 };
+/^ITEMP.*/     { temp = \$3 * 100 };
+/^TIMELEFT.*/  { time = \$3 * 100 };
+/^STATUS.*/    { online=(\$3 == \"ONLINE\")?1:0 };
 END {
-	print \"BEGIN apcupsd_${host}.charge $1\";
-	print \"SET battery_charge = \" battery_charge;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.battery_voltage $1\";
-	print \"SET battery_voltage = \" battery_voltage;
-	print \"SET battery_voltage_nominal = \" battery_voltage_nominal;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.input_voltage $1\";
-	print \"SET input_voltage = \" input_voltage;
-	print \"SET input_voltage_min = \" input_voltage_min;
-	print \"SET input_voltage_max = \" input_voltage_max;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.input_frequency $1\";
-	print \"SET input_frequency = \" input_frequency;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.output_voltage $1\";
-	print \"SET output_voltage = \" output_voltage;
-        print \"SET output_voltage_nominal = \" output_voltage_nominal;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.load $1\";
-	print \"SET load = \" load;
-	print \"END\"
-
-	print \"BEGIN apcupsd_${host}.temp $1\";
-	print \"SET temp = \" temp;
+	print \"BEGIN apcupsd_${host}.online $1\";
+	print \"SET online = \" online;
 	print \"END\"
 
-	print \"BEGIN apcupsd_${host}.time $1\";
-	print \"SET time = \" time;
-	print \"END\"
+	if (online == 1) {
+		print \"BEGIN apcupsd_${host}.charge $1\";
+		print \"SET battery_charge = \" battery_charge;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.battery_voltage $1\";
+		print \"SET battery_voltage = \" battery_voltage;
+		print \"SET battery_voltage_nominal = \" battery_voltage_nominal;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.input_voltage $1\";
+		print \"SET input_voltage = \" input_voltage;
+		print \"SET input_voltage_min = \" input_voltage_min;
+		print \"SET input_voltage_max = \" input_voltage_max;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.input_frequency $1\";
+		print \"SET input_frequency = \" input_frequency;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.output_voltage $1\";
+		print \"SET output_voltage = \" output_voltage;
+		print \"SET output_voltage_nominal = \" output_voltage_nominal;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.load $1\";
+		print \"SET load = \" load;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.temp $1\";
+		print \"SET temp = \" temp;
+		print \"END\"
+
+		print \"BEGIN apcupsd_${host}.time $1\";
+		print \"SET time = \" time;
+		print \"END\"
+	}
 }"
-	# shellcheck disable=SC2181
-        if [ $? -ne 0 ]
-        then
-            failed=$((failed + 1))
-        	error "failed to get values for APC UPS ${host} on ${apcupsd_sources[${host}]}" && return 1
-        else
-            working=$((working + 1))
-        fi
-    done
+		# shellcheck disable=SC2181
+		if [ $? -ne 0 ]; then
+			failed=$((failed + 1))
+			error "failed to get values for APC UPS ${host} on ${apcupsd_sources[${host}]}" && return 1
+		else
+			working=$((working + 1))
+		fi
+	done
 
 	[ $working -eq 0 ] && error "failed to get values from all APC UPSes" && return 1
 
diff --git a/collectors/charts.d.plugin/charts.d.dryrun-helper.sh b/collectors/charts.d.plugin/charts.d.dryrun-helper.sh
index 67496c1bd..91af2c542 100755
--- a/collectors/charts.d.plugin/charts.d.dryrun-helper.sh
+++ b/collectors/charts.d.plugin/charts.d.dryrun-helper.sh
@@ -17,7 +17,7 @@ tmp1="$(mktemp)"
 tmp2="$(mktemp)"
 
 myset() {
-    set | grep -v "^_=" | grep -v "^PIPESTATUS=" | grep -v "^BASH_LINENO="
+	set | grep -v "^_=" | grep -v "^PIPESTATUS=" | grep -v "^BASH_LINENO="
 }
 
 # save 2 'set'
@@ -26,52 +26,46 @@ myset >"$tmp2"
 
 # make sure they don't differ
 diff "$tmp1" "$tmp2" >/dev/null 2>&1
-if [ $? -ne 0 ]
-then
-    # they differ, we cannot do the check
-    echo >&2 "$me: cannot check with diff."
-    can_diff=0
+if [ $? -ne 0 ]; then
+	# they differ, we cannot do the check
+	echo >&2 "$me: cannot check with diff."
+	can_diff=0
 fi
 
 # do it again, now including the script
 myset >"$tmp1"
 
 # include the plugin and its config
-if [ -f "$conf" ]
-then
-    # shellcheck source=/dev/null
-    . "$conf"
-    if [ $? -ne 0 ]
-    then
-        echo >&2 "$me: cannot load config file $conf"
-        rm "$tmp1" "$tmp2"
-        exit 1
-    fi
+if [ -f "$conf" ]; then
+	# shellcheck source=/dev/null
+	. "$conf"
+	if [ $? -ne 0 ]; then
+		echo >&2 "$me: cannot load config file $conf"
+		rm "$tmp1" "$tmp2"
+		exit 1
+	fi
 fi
 
 # shellcheck source=/dev/null
 . "$chart"
-if [ $? -ne 0 ]
-then
-    echo >&2 "$me: cannot load chart file $chart"
-    rm "$tmp1" "$tmp2"
-    exit 1
+if [ $? -ne 0 ]; then
+	echo >&2 "$me: cannot load chart file $chart"
+	rm "$tmp1" "$tmp2"
+	exit 1
 fi
 
 # remove all variables starting with the plugin name
 myset | grep -v "^$name" >"$tmp2"
 
-if [ $can_diff -eq 1 ]
-then
-    # check if they are different
-    # make sure they don't differ
-    diff "$tmp1" "$tmp2" >&2
-    if [ $? -ne 0 ]
-    then
-        # they differ
-        rm "$tmp1" "$tmp2"
-        exit 1
-    fi
+if [ $can_diff -eq 1 ]; then
+	# check if they are different
+	# make sure they don't differ
+	diff "$tmp1" "$tmp2" >&2
+	if [ $? -ne 0 ]; then
+		# they differ
+		rm "$tmp1" "$tmp2"
+		exit 1
+	fi
 fi
 
 rm "$tmp1" "$tmp2"
diff --git a/collectors/charts.d.plugin/charts.d.plugin b/collectors/charts.d.plugin/charts.d.plugin
deleted file mode 100644
index 1c6e8c5c9..000000000
--- a/collectors/charts.d.plugin/charts.d.plugin
+++ /dev/null
@@ -1,743 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-# netdata
-# real-time performance and health monitoring, done right!
-# (C) 2017 Costa Tsaousis <costa@tsaousis.gr>
-# GPL v3+
-#
-# charts.d.plugin allows easy development of BASH plugins
-#
-# if you need to run parallel charts.d processes, link this file to a different name
-# in the same directory, with a .plugin suffix and netdata will start both of them,
-# each will have a different config file and modules configuration directory.
-#
-
-export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
-
-PROGRAM_FILE="$0"
-PROGRAM_NAME="$(basename $0)"
-PROGRAM_NAME="${PROGRAM_NAME/.plugin}"
-MODULE_NAME="main"
-
-# -----------------------------------------------------------------------------
-# create temp dir
-
-debug=0
-TMP_DIR=
-chartsd_cleanup() {
-    trap '' EXIT QUIT HUP INT TERM
-
-    if [ ! -z "$TMP_DIR" -a -d "$TMP_DIR" ]
-    then
-        [ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: cleaning up temporary directory $TMP_DIR ..."
-        rm -rf "$TMP_DIR"
-    fi
-    exit 0
-}
-trap chartsd_cleanup EXIT QUIT HUP INT TERM
-
-if [ $UID = "0" ]
-then
-    TMP_DIR="$( mktemp -d /var/run/netdata-${PROGRAM_NAME}-XXXXXXXXXX )"
-else
-    TMP_DIR="$( mktemp -d /tmp/.netdata-${PROGRAM_NAME}-XXXXXXXXXX )"
-fi
-
-logdate() {
-    date "+%Y-%m-%d %H:%M:%S"
-}
-
-log() {
-    local status="${1}"
-    shift
-
-    echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: ${*}"
-
-}
-
-warning() {
-    log WARNING "${@}"
-}
-
-error() {
-    log ERROR "${@}"
-}
-
-info() {
-    log INFO "${@}"
-}
-
-fatal() {
-    log FATAL "${@}"
-    echo "DISABLE"
-    exit 1
-}
-
-debug() {
-    [ $debug -eq 1 ] && log DEBUG "${@}"
-}
-
-# -----------------------------------------------------------------------------
-# check a few commands
-
-require_cmd() {
-    local x=$(which "${1}" 2>/dev/null || command -v "${1}" 2>/dev/null)
-    if [ -z "${x}" -o ! -x "${x}" ]
-        then
-        warning "command '${1}' is not found in ${PATH}."
-        eval "${1^^}_CMD=\"\""
-        return 1
-    fi
-
-    eval "${1^^}_CMD=\"${x}\""
-    return 0
-}
-
-require_cmd date || exit 1
-require_cmd sed || exit 1
-require_cmd basename || exit 1
-require_cmd dirname || exit 1
-require_cmd cat || exit 1
-require_cmd grep || exit 1
-require_cmd egrep || exit 1
-require_cmd mktemp || exit 1
-require_cmd awk || exit 1
-require_cmd timeout || exit 1
-require_cmd curl || exit 1
-
-# -----------------------------------------------------------------------------
-
-[ $(( ${BASH_VERSINFO[0]} )) -lt 4 ] && fatal "BASH version 4 or later is required, but found version: ${BASH_VERSION}. Please upgrade."
-
-info "started from '$PROGRAM_FILE' with options: $*"
-
-# -----------------------------------------------------------------------------
-# internal defaults
-# netdata exposes a few environment variables for us
-
-[ -z "${NETDATA_PLUGINS_DIR}" ] && NETDATA_PLUGINS_DIR="$(dirname "${0}")"
-[ -z "${NETDATA_USER_CONFIG_DIR}"  ] && NETDATA_USER_CONFIG_DIR="/usr/local/etc/netdata"
-[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="/usr/local/lib/netdata/conf.d"
-
-pluginsd="${NETDATA_PLUGINS_DIR}"
-stockconfd="${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}"
-userconfd="${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}"
-olduserconfd="${NETDATA_USER_CONFIG_DIR}"
-chartsd="$pluginsd/../charts.d"
-
-minimum_update_frequency="${NETDATA_UPDATE_EVERY-1}"
-update_every=${minimum_update_frequency}    # this will be overwritten by the command line
-
-# work around for non BASH shells
-charts_create="_create"
-charts_update="_update"
-charts_check="_check"
-charts_undescore="_"
-
-# when making iterations, charts.d can loop more frequently
-# to prevent plugins missing iterations.
-# this is a percentage relative to update_every to align its
-# iterations.
-# The minimum is 10%, the maximum 100%.
-# So, if update_every is 1 second and time_divisor is 50,
-# charts.d will iterate every 500ms.
-# Charts will be called to collect data only if the time
-# passed since the last time the collected data is equal or
-# above their update_every.
-time_divisor=50
-
-# number of seconds to run without restart
-# after this time, charts.d.plugin will exit
-# netdata will restart it
-restart_timeout=$((3600 * 4))
-
-# check if the charts.d plugins are using global variables
-# they should not.
-# It does not currently support BASH v4 arrays, so it is
-# disabled
-dryrunner=0
-
-# check for timeout command
-check_for_timeout=1
-
-# the default enable/disable value for all charts
-enable_all_charts="yes"
-
-# -----------------------------------------------------------------------------
-# parse parameters
-
-check=0
-chart_only=
-while [ ! -z "$1" ]
-do
-    if [ "$1" = "check" ]
-    then
-        check=1
-        shift
-        continue
-    fi
-
-    if [ "$1" = "debug" -o "$1" = "all" ]
-    then
-        debug=1
-        shift
-        continue
-    fi
-
-    if [ -f "$chartsd/$1.chart.sh" ]
-    then
-        debug=1
-        chart_only="$( echo $1.chart.sh | sed "s/\.chart\.sh$//g" )"
-        shift
-        continue
-    fi
-
-    if [ -f "$chartsd/$1" ]
-    then
-        debug=1
-        chart_only="$( echo $1 | sed "s/\.chart\.sh$//g" )"
-        shift
-        continue
-    fi
-
-    # number check
-    n="$1"
-    x=$(( n ))
-    if [ "$x" = "$n" ]
-    then
-        shift
-        update_every=$x
-        [ $update_every -lt $minimum_update_frequency ] && update_every=$minimum_update_frequency
-        continue
-    fi
-
-    fatal "Cannot understand parameter $1. Aborting."
-done
-
-
-# -----------------------------------------------------------------------------
-# loop control
-
-# default sleep function
-LOOPSLEEPMS_HIGHRES=0
-now_ms=
-current_time_ms_default() {
-    now_ms="$(date +'%s')000"
-}
-current_time_ms="current_time_ms_default"
-current_time_ms_accuracy=1
-mysleep="sleep"
-
-# if found and included, this file overwrites loopsleepms()
-# and current_time_ms() with a high resolution timer function
-# for precise looping.
-source "$pluginsd/loopsleepms.sh.inc"
-[ $? -ne 0 ] && error "Failed to load '$pluginsd/loopsleepms.sh.inc'."
-
-# -----------------------------------------------------------------------------
-# load my configuration
-
-for myconfig in "${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}.conf" "${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf"
-do
-    if [ -f "$myconfig" ]
-    then
-        source "$myconfig"
-        if [ $? -ne 0 ]
-        then
-            error "Config file '$myconfig' loaded with errors."
-        else
-            info "Configuration file '$myconfig' loaded."
-        fi
-    else
-        warning "Configuration file '$myconfig' not found."
-    fi
-done
-
-# make sure time_divisor is right
-time_divisor=$((time_divisor))
-[ $time_divisor -lt 10 ] && time_divisor=10
-[ $time_divisor -gt 100 ] && time_divisor=100
-
-
-# we check for the timeout command, after we load our
-# configuration, so that the user may overwrite the
-# timeout command we use, providing a function that
-# can emulate the timeout command we need:
-# > timeout SECONDS command ...
-if [ $check_for_timeout -eq 1 ]
-    then
-    require_cmd timeout || exit 1
-fi
-
-# -----------------------------------------------------------------------------
-# internal checks
-
-# netdata passes the requested update frequency as the first argument
-update_every=$(( update_every + 1 - 1)) # makes sure it is a number
-test $update_every -eq 0 && update_every=1 # if it is zero, make it 1
-
-# check the charts.d directory
-[ ! -d "$chartsd" ] && fatal "cannot find charts directory '$chartsd'"
-
-# -----------------------------------------------------------------------------
-# library functions
-
-fixid() {
-    echo "$*" |\
-        tr -c "[A-Z][a-z][0-9]" "_" |\
-        sed -e "s|^_\+||g" -e "s|_\+$||g" -e "s|_\+|_|g" |\
-        tr "[A-Z]" "[a-z]"
-}
-
-run() {
-    local ret pid="${BASHPID}" t
-
-    if [ "z${1}" = "z-t" -a "${2}" != "0" ]
-    then
-        t="${2}"
-        shift 2
-        timeout ${t} "${@}" 2>"${TMP_DIR}/run.${pid}"
-        ret=$?
-    else
-        "${@}" 2>"${TMP_DIR}/run.${pid}"
-        ret=$?
-    fi
-
-    if [ ${ret} -ne 0 ]
-    then
-        {
-            printf "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: command '"
-            printf "%q " "${@}"
-            printf "' failed with code ${ret}:\n --- BEGIN TRACE ---\n"
-            cat "${TMP_DIR}/run.${pid}"
-            printf " --- END TRACE ---\n"
-        } >&2
-    fi
-    rm "${TMP_DIR}/run.${pid}"
-
-    return ${ret}
-}
-
-# convert any floating point number
-# to integer, give a multiplier
-# the result is stored in ${FLOAT2INT_RESULT}
-# so that no fork is necessary
-# the multiplier must be a power of 10
-float2int() {
-    local f m="$2" a b l v=($1)
-    f=${v[0]}
-
-    # the length of the multiplier - 1
-    l=$(( ${#m} - 1 ))
-
-    # check if the number is in scientific notation
-    if [[ ${f} =~ ^[[:space:]]*(-)?[0-9.]+(e|E)(\+|-)[0-9]+ ]]
-        then
-        # convert it to decimal
-        # unfortunately, this fork cannot be avoided
-        # if you know of a way to avoid it, please let me know
-        f=$(printf "%0.${l}f" ${f})
-    fi
-
-    # split the floating point number
-    # in integer (a) and decimal (b)
-    a=${f/.*/}
-    b=${f/*./}
-
-    # if the integer part is missing
-    # set it to zero
-    [ -z "${a}" ] && a="0"
-
-    # strip leading zeros from the integer part
-    # base 10 convertion
-    a=$((10#$a))
-
-    # check the length of the decimal part
-    # against the length of the multiplier
-    if [ ${#b} -gt ${l} ]
-        then
-        # too many digits - take the most significant
-        b=${b:0:${l}}
-
-    elif [ ${#b} -lt ${l} ]
-        then
-        # too few digits - pad with zero on the right
-        local z="00000000000000000000000" r=$((l - ${#b}))
-        b="${b}${z:0:${r}}"
-    fi
-
-    # strip leading zeros from the decimal part
-    # base 10 convertion
-    b=$((10#$b))
-
-    # store the result
-    FLOAT2INT_RESULT=$(( (a * m) + b ))
-}
-
-
-# -----------------------------------------------------------------------------
-# charts check functions
-
-all_charts() {
-    cd "$chartsd"
-    [ $? -ne 0 ] && error "cannot cd to $chartsd" && return 1
-
-    ls *.chart.sh | sed "s/\.chart\.sh$//g"
-}
-
-declare -A charts_enable_keyword=(
-          ['apache']="force"
-        ['cpu_apps']="force"
-         ['cpufreq']="force"
-         ['example']="force"
-            ['exim']="force"
-         ['hddtemp']="force"
-    ['load_average']="force"
-        ['mem_apps']="force"
-           ['mysql']="force"
-           ['nginx']="force"
-          ['phpfpm']="force"
-         ['postfix']="force"
-         ['sensors']="force"
-           ['squid']="force"
-          ['tomcat']="force"
-    )
-
-all_enabled_charts() {
-    local charts= enabled= required=
-
-    # find all enabled charts
-
-    for chart in $( all_charts )
-    do
-        MODULE_NAME="${chart}"
-
-        eval "enabled=\$$chart"
-        if [ -z "${enabled}" ]
-            then
-            enabled="${enable_all_charts}"
-        fi
-
-        required="${charts_enable_keyword[${chart}]}"
-        [ -z "${required}" ] && required="yes"
-
-        if [ ! "${enabled}" = "${required}" ]
-        then
-            info "is disabled. Add a line with $chart=$required in '${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf' to enable it (or remove the line that disables it)."
-        else
-            debug "is enabled for auto-detection."
-            local charts="$charts $chart"
-        fi
-    done
-    MODULE_NAME="main"
-
-    local charts2=
-    for chart in $charts
-    do
-        MODULE_NAME="${chart}"
-
-        # check the enabled charts
-        local check="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_check()" )"
-        if [ -z "$check" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_check() function. Disabling it."
-            continue
-        fi
-
-        local create="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_create()" )"
-        if [ -z "$create" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_create() function. Disabling it."
-            continue
-        fi
-
-        local update="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_update()" )"
-        if [ -z "$update" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_update() function. Disabling it."
-            continue
-        fi
-
-        # check its config
-        #if [ -f "$userconfd/$chart.conf" ]
-        #then
-        #   if [ ! -z "$( cat "$userconfd/$chart.conf" | sed "s/^ \+//g" | grep -v "^$" | grep -v "^#" | grep -v "^$chart$charts_undescore" )" ]
-        #   then
-        #       error "module's $chart config $userconfd/$chart.conf should only have lines starting with $chart$charts_undescore . Disabling it."
-        #       continue
-        #   fi
-        #fi
-
-        #if [ $dryrunner -eq 1 ]
-        #   then
-        #   "$pluginsd/charts.d.dryrun-helper.sh" "$chart" "$chartsd/$chart.chart.sh" "$userconfd/$chart.conf" >/dev/null
-        #   if [ $? -ne 0 ]
-        #   then
-        #       error "module's $chart did not pass the dry run check. This means it uses global variables not starting with $chart. Disabling it."
-        #       continue
-        #   fi
-        #fi
-
-        local charts2="$charts2 $chart"
-    done
-    MODULE_NAME="main"
-
-    echo $charts2
-    debug "enabled charts: $charts2"
-}
-
-# -----------------------------------------------------------------------------
-# load the charts
-
-suffix_retries="_retries"
-suffix_update_every="_update_every"
-active_charts=
-for chart in $( all_enabled_charts )
-do
-    MODULE_NAME="${chart}"
-
-    debug "loading module: '$chartsd/$chart.chart.sh'"
-
-    source "$chartsd/$chart.chart.sh"
-    [ $? -ne 0 ] && warning "Module '$chartsd/$chart.chart.sh' loaded with errors."
-
-    # first load the stock config
-    if [ -f "$stockconfd/$chart.conf" ]
-    then
-        debug "loading module configuration: '$stockconfd/$chart.conf'"
-        source "$stockconfd/$chart.conf"
-        [ $? -ne 0 ] && warning "Config file '$stockconfd/$chart.conf' loaded with errors."
-    else
-        debug "not found module configuration: '$stockconfd/$chart.conf'"
-    fi
-
-    # then load the user config (it overwrites the stock)
-    if [ -f "$userconfd/$chart.conf" ]
-    then
-        debug "loading module configuration: '$userconfd/$chart.conf'"
-        source "$userconfd/$chart.conf"
-        [ $? -ne 0 ] && warning "Config file '$userconfd/$chart.conf' loaded with errors."
-    else
-        debug "not found module configuration: '$userconfd/$chart.conf'"
-
-        if [ -f "$olduserconfd/$chart.conf" ]
-        then
-            # support for very old netdata that had the charts.d module configs in /etc/netdata
-            info "loading module configuration from obsolete location: '$olduserconfd/$chart.conf'"
-            source "$olduserconfd/$chart.conf"
-            [ $? -ne 0 ] && warning "Config file '$olduserconfd/$chart.conf' loaded with errors."
-        fi
-    fi
-
-    eval "dt=\$$chart$suffix_update_every"
-    dt=$(( dt + 1 - 1 )) # make sure it is a number
-    if [ $dt -lt $update_every ]
-    then
-        eval "$chart$suffix_update_every=$update_every"
-    fi
-
-    $chart$charts_check
-    if [ $? -eq 0 ]
-    then
-        debug "module '$chart' activated"
-        active_charts="$active_charts $chart"
-    else
-        error "module's '$chart' check() function reports failure."
-    fi
-done
-MODULE_NAME="main"
-debug "activated modules: $active_charts"
-
-
-# -----------------------------------------------------------------------------
-# check overwrites
-
-# enable work time reporting
-debug_time=
-test $debug -eq 1 && debug_time=tellwork
-
-# if we only need a specific chart, remove all the others
-if [ ! -z "${chart_only}" ]
-then
-    debug "requested to run only for: '${chart_only}'"
-    check_charts=
-    for chart in $active_charts
-    do
-        if [ "$chart" = "$chart_only" ]
-        then
-            check_charts="$chart"
-            break
-        fi
-    done
-    active_charts="$check_charts"
-fi
-debug "activated charts: $active_charts"
-
-# stop if we just need a pre-check
-if [ $check -eq 1 ]
-then
-    info "CHECK RESULT"
-    info "Will run the charts: $active_charts"
-    exit 0
-fi
-
-# -----------------------------------------------------------------------------
-
-cd "${TMP_DIR}" || exit 1
-
-# -----------------------------------------------------------------------------
-# create charts
-
-run_charts=
-for chart in $active_charts
-do
-    MODULE_NAME="${chart}"
-
-    debug "calling '$chart$charts_create()'..."
-    $chart$charts_create
-    if [ $? -eq 0 ]
-    then
-        run_charts="$run_charts $chart"
-        debug "'$chart' initialized."
-    else
-        error "module's '$chart' function '$chart$charts_create()' reports failure."
-    fi
-done
-MODULE_NAME="main"
-debug "run_charts='$run_charts'"
-
-
-# -----------------------------------------------------------------------------
-# update dimensions
-
-[ -z "$run_charts" ] && fatal "No charts to collect data from."
-
-declare -A charts_last_update=() charts_update_every=() charts_retries=() charts_next_update=() charts_run_counter=() charts_serial_failures=()
-global_update() {
-    local exit_at \
-        c=0 dt ret last_ms exec_start_ms exec_end_ms \
-        chart now_charts=() next_charts=($run_charts) \
-        next_ms x seconds millis
-
-    # return the current time in ms in $now_ms
-    ${current_time_ms}
-
-    exit_at=$(( now_ms + (restart_timeout * 1000) ))
-
-    for chart in $run_charts
-    do
-        eval "charts_update_every[$chart]=\$$chart$suffix_update_every"
-        test -z "${charts_update_every[$chart]}" && charts_update_every[$chart]=$update_every
-
-        eval "charts_retries[$chart]=\$$chart$suffix_retries"
-        test -z "${charts_retries[$chart]}" && charts_retries[$chart]=10
-
-        charts_last_update[$chart]=$((now_ms - (now_ms % (charts_update_every[$chart] * 1000) ) ))
-        charts_next_update[$chart]=$(( charts_last_update[$chart] + (charts_update_every[$chart] * 1000) ))
-        charts_run_counter[$chart]=0
-        charts_serial_failures[$chart]=0
-
-        echo "CHART netdata.plugin_chartsd_$chart '' 'Execution time for $chart plugin' 'milliseconds / run' charts.d netdata.plugin_charts area 145000 ${charts_update_every[$chart]}"
-        echo "DIMENSION run_time 'run time' absolute 1 1"
-    done
-
-    # the main loop
-    while [ "${#next_charts[@]}" -gt 0 ]
-    do
-        c=$((c + 1))
-        now_charts=("${next_charts[@]}")
-        next_charts=()
-
-        # return the current time in ms in $now_ms
-        ${current_time_ms}
-
-        for chart in "${now_charts[@]}"
-        do
-            MODULE_NAME="${chart}"
-
-            if [ ${now_ms} -ge ${charts_next_update[$chart]} ]
-            then
-                last_ms=${charts_last_update[$chart]}
-                dt=$(( (now_ms - last_ms) ))
-
-                charts_last_update[$chart]=${now_ms}
-
-                while [ ${charts_next_update[$chart]} -lt ${now_ms} ]
-                do
-                    charts_next_update[$chart]=$(( charts_next_update[$chart] + (charts_update_every[$chart] * 1000) ))
-                done
-
-                # the first call should not give a duration
-                # so that netdata calibrates to current time
-                dt=$(( dt * 1000 ))
-                charts_run_counter[$chart]=$(( charts_run_counter[$chart] + 1 ))
-                if [ ${charts_run_counter[$chart]} -eq 1 ]
-                    then
-                    dt=
-                fi
-
-                exec_start_ms=$now_ms
-                $chart$charts_update $dt
-                ret=$?
-
-                # return the current time in ms in $now_ms
-                ${current_time_ms}; exec_end_ms=$now_ms
-
-                echo "BEGIN netdata.plugin_chartsd_$chart $dt"
-                echo "SET run_time = $(( exec_end_ms - exec_start_ms ))"
-                echo "END"
-
-                if [ $ret -eq 0 ]
-                then
-                    charts_serial_failures[$chart]=0
-                    next_charts+=($chart)
-                else
-                    charts_serial_failures[$chart]=$(( charts_serial_failures[$chart] + 1 ))
-
-                    if [ ${charts_serial_failures[$chart]} -gt ${charts_retries[$chart]} ]
-                        then
-                        error "module's '$chart' update() function reported failure ${charts_serial_failures[$chart]} times. Disabling it."
-                    else
-                        error "module's '$chart' update() function reports failure. Will keep trying for a while."
-                        next_charts+=($chart)
-                    fi
-                fi
-            else
-                next_charts+=($chart)
-            fi
-        done
-        MODULE_NAME="${chart}"
-
-        # wait the time you are required to
-        next_ms=$((now_ms + (update_every * 1000 * 100) ))
-        for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done
-        next_ms=$((next_ms - now_ms))
-
-        if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ]
-            then
-            next_ms=$(( next_ms + current_time_ms_accuracy ))
-            seconds=$(( next_ms / 1000 ))
-            millis=$(( next_ms % 1000 ))
-            if [ ${millis} -lt 10  ]
-                then
-                millis="00${millis}"
-            elif [ ${millis} -lt 100 ]
-                then
-                millis="0${millis}"
-            fi
-
-            debug "sleeping for ${seconds}.${millis} seconds."
-            ${mysleep} ${seconds}.${millis}
-        else
-            debug "sleeping for ${update_every} seconds."
-            ${mysleep} $update_every
-        fi
-
-        test ${now_ms} -ge ${exit_at} && exit 0
-    done
-
-    fatal "nothing left to do, exiting..."
-}
-
-global_update
diff --git a/collectors/charts.d.plugin/charts.d.plugin.in b/collectors/charts.d.plugin/charts.d.plugin.in
index 3477894d8..05a63875b 100755
--- a/collectors/charts.d.plugin/charts.d.plugin.in
+++ b/collectors/charts.d.plugin/charts.d.plugin.in
@@ -17,7 +17,7 @@ export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
 
 PROGRAM_FILE="$0"
 PROGRAM_NAME="$(basename $0)"
-PROGRAM_NAME="${PROGRAM_NAME/.plugin}"
+PROGRAM_NAME="${PROGRAM_NAME/.plugin/}"
 MODULE_NAME="main"
 
 # -----------------------------------------------------------------------------
@@ -26,72 +26,69 @@ MODULE_NAME="main"
 debug=0
 TMP_DIR=
 chartsd_cleanup() {
-    trap '' EXIT QUIT HUP INT TERM
-
-    if [ ! -z "$TMP_DIR" -a -d "$TMP_DIR" ]
-    then
-        [ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: cleaning up temporary directory $TMP_DIR ..."
-        rm -rf "$TMP_DIR"
-    fi
-    exit 0
+	trap '' EXIT QUIT HUP INT TERM
+
+	if [ ! -z "$TMP_DIR" -a -d "$TMP_DIR" ]; then
+		[ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: cleaning up temporary directory $TMP_DIR ..."
+		rm -rf "$TMP_DIR"
+	fi
+	exit 0
 }
 trap chartsd_cleanup EXIT QUIT HUP INT TERM
 
-if [ $UID = "0" ]
-then
-    TMP_DIR="$( mktemp -d /var/run/netdata-${PROGRAM_NAME}-XXXXXXXXXX )"
+if [ $UID = "0" ]; then
+	TMP_DIR="$(mktemp -d /var/run/netdata-${PROGRAM_NAME}-XXXXXXXXXX)"
 else
-    TMP_DIR="$( mktemp -d /tmp/.netdata-${PROGRAM_NAME}-XXXXXXXXXX )"
+	TMP_DIR="$(mktemp -d /tmp/.netdata-${PROGRAM_NAME}-XXXXXXXXXX)"
 fi
 
 logdate() {
-    date "+%Y-%m-%d %H:%M:%S"
+	date "+%Y-%m-%d %H:%M:%S"
 }
 
 log() {
-    local status="${1}"
-    shift
+	local status="${1}"
+	shift
 
-    echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: ${*}"
+	echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: ${*}"
 
 }
 
 warning() {
-    log WARNING "${@}"
+	log WARNING "${@}"
 }
 
 error() {
-    log ERROR "${@}"
+	log ERROR "${@}"
 }
 
 info() {
-    log INFO "${@}"
+	log INFO "${@}"
 }
 
 fatal() {
-    log FATAL "${@}"
-    echo "DISABLE"
-    exit 1
+	log FATAL "${@}"
+	echo "DISABLE"
+	exit 1
 }
 
 debug() {
-    [ $debug -eq 1 ] && log DEBUG "${@}"
+	[ $debug -eq 1 ] && log DEBUG "${@}"
 }
 
 # -----------------------------------------------------------------------------
 # check a few commands
 
 require_cmd() {
-    local x=$(which "${1}" 2>/dev/null || command -v "${1}" 2>/dev/null)
-    if [ -z "${x}" -o ! -x "${x}" ]
-        then
-        warning "command '${1}' is not found in ${PATH}."
-        eval "${1^^}_CMD=\"\""
-        return 1
-    fi
-
-    eval "${1^^}_CMD=\"${x}\""
-    return 0
+	local x=$(which "${1}" 2>/dev/null || command -v "${1}" 2>/dev/null)
+	if [ -z "${x}" -o ! -x "${x}" ]; then
+		warning "command '${1}' is not found in ${PATH}."
+		eval "${1^^}_CMD=\"\""
+		return 1
+	fi
+
+	eval "${1^^}_CMD=\"${x}\""
+	return 0
 }
 
 require_cmd date || exit 1
@@ -108,7 +105,7 @@ require_cmd curl || exit 1
 
 # -----------------------------------------------------------------------------
 
-[ $(( ${BASH_VERSINFO[0]} )) -lt 4 ] && fatal "BASH version 4 or later is required, but found version: ${BASH_VERSION}. Please upgrade."
+[ $((BASH_VERSINFO[0])) -lt 4 ] && fatal "BASH version 4 or later is required, but found version: ${BASH_VERSION}. Please upgrade."
 
 info "started from '$PROGRAM_FILE' with options: $*"
 
@@ -117,7 +114,7 @@ info "started from '$PROGRAM_FILE' with options: $*"
 # netdata exposes a few environment variables for us
 
 [ -z "${NETDATA_PLUGINS_DIR}" ] && NETDATA_PLUGINS_DIR="$(dirname "${0}")"
-[ -z "${NETDATA_USER_CONFIG_DIR}"  ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@"
+[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@"
 [ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="@libconfigdir_POST@"
 
 pluginsd="${NETDATA_PLUGINS_DIR}"
@@ -127,7 +124,7 @@ olduserconfd="${NETDATA_USER_CONFIG_DIR}"
 chartsd="$pluginsd/../charts.d"
 
 minimum_update_frequency="${NETDATA_UPDATE_EVERY-1}"
-update_every=${minimum_update_frequency}    # this will be overwritten by the command line
+update_every=${minimum_update_frequency} # this will be overwritten by the command line
 
 # work around for non BASH shells
 charts_create="_create"
@@ -169,53 +166,46 @@ enable_all_charts="yes"
 
 check=0
 chart_only=
-while [ ! -z "$1" ]
-do
-    if [ "$1" = "check" ]
-    then
-        check=1
-        shift
-        continue
-    fi
-
-    if [ "$1" = "debug" -o "$1" = "all" ]
-    then
-        debug=1
-        shift
-        continue
-    fi
-
-    if [ -f "$chartsd/$1.chart.sh" ]
-    then
-        debug=1
-        chart_only="$( echo $1.chart.sh | sed "s/\.chart\.sh$//g" )"
-        shift
-        continue
-    fi
-
-    if [ -f "$chartsd/$1" ]
-    then
-        debug=1
-        chart_only="$( echo $1 | sed "s/\.chart\.sh$//g" )"
-        shift
-        continue
-    fi
-
-    # number check
-    n="$1"
-    x=$(( n ))
-    if [ "$x" = "$n" ]
-    then
-        shift
-        update_every=$x
-        [ $update_every -lt $minimum_update_frequency ] && update_every=$minimum_update_frequency
-        continue
-    fi
-
-    fatal "Cannot understand parameter $1. Aborting."
+while [ ! -z "$1" ]; do
+	if [ "$1" = "check" ]; then
+		check=1
+		shift
+		continue
+	fi
+
+	if [ "$1" = "debug" -o "$1" = "all" ]; then
+		debug=1
+		shift
+		continue
+	fi
+
+	if [ -f "$chartsd/$1.chart.sh" ]; then
+		debug=1
+		chart_only="$(echo $1.chart.sh | sed "s/\.chart\.sh$//g")"
+		shift
+		continue
+	fi
+
+	if [ -f "$chartsd/$1" ]; then
+		debug=1
+		chart_only="$(echo $1 | sed "s/\.chart\.sh$//g")"
+		shift
+		continue
+	fi
+
+	# number check
+	n="$1"
+	x=$((n))
+	if [ "$x" = "$n" ]; then
+		shift
+		update_every=$x
+		[ $update_every -lt $minimum_update_frequency ] && update_every=$minimum_update_frequency
+		continue
+	fi
+
+	fatal "Cannot understand parameter $1. Aborting."
 done
 
-
 # -----------------------------------------------------------------------------
 # loop control
 
@@ -223,7 +213,7 @@ done
 LOOPSLEEPMS_HIGHRES=0
 now_ms=
 current_time_ms_default() {
-    now_ms="$(date +'%s')000"
+	now_ms="$(date +'%s')000"
 }
 current_time_ms="current_time_ms_default"
 current_time_ms_accuracy=1
@@ -238,20 +228,17 @@ source "$pluginsd/loopsleepms.sh.inc"
 # -----------------------------------------------------------------------------
 # load my configuration
 
-for myconfig in "${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}.conf" "${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf"
-do
-    if [ -f "$myconfig" ]
-    then
-        source "$myconfig"
-        if [ $? -ne 0 ]
-        then
-            error "Config file '$myconfig' loaded with errors."
-        else
-            info "Configuration file '$myconfig' loaded."
-        fi
-    else
-        warning "Configuration file '$myconfig' not found."
-    fi
+for myconfig in "${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}.conf" "${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf"; do
+	if [ -f "$myconfig" ]; then
+		source "$myconfig"
+		if [ $? -ne 0 ]; then
+			error "Config file '$myconfig' loaded with errors."
+		else
+			info "Configuration file '$myconfig' loaded."
+		fi
+	else
+		warning "Configuration file '$myconfig' not found."
+	fi
 done
 
 # make sure time_divisor is right
@@ -259,22 +246,20 @@ time_divisor=$((time_divisor))
 [ $time_divisor -lt 10 ] && time_divisor=10
 [ $time_divisor -gt 100 ] && time_divisor=100
 
-
 # we check for the timeout command, after we load our
 # configuration, so that the user may overwrite the
 # timeout command we use, providing a function that
 # can emulate the timeout command we need:
 # > timeout SECONDS command ...
-if [ $check_for_timeout -eq 1 ]
-    then
-    require_cmd timeout || exit 1
+if [ $check_for_timeout -eq 1 ]; then
+	require_cmd timeout || exit 1
 fi
 
 # -----------------------------------------------------------------------------
 # internal checks
 
 # netdata passes the requested update frequency as the first argument
-update_every=$(( update_every + 1 - 1)) # makes sure it is a number
+update_every=$((update_every + 1 - 1))     # makes sure it is a number
 test $update_every -eq 0 && update_every=1 # if it is zero, make it 1
 
 # check the charts.d directory
@@ -284,39 +269,37 @@ test $update_every -eq 0 && update_every=1 # if it is zero, make it 1
 # library functions
 
 fixid() {
-    echo "$*" |\
-        tr -c "[A-Z][a-z][0-9]" "_" |\
-        sed -e "s|^_\+||g" -e "s|_\+$||g" -e "s|_\+|_|g" |\
-        tr "[A-Z]" "[a-z]"
+	echo "$*" |
+		tr -c "[A-Z][a-z][0-9]" "_" |
+		sed -e "s|^_\+||g" -e "s|_\+$||g" -e "s|_\+|_|g" |
+		tr "[A-Z]" "[a-z]"
 }
 
 run() {
-    local ret pid="${BASHPID}" t
-
-    if [ "z${1}" = "z-t" -a "${2}" != "0" ]
-    then
-        t="${2}"
-        shift 2
-        timeout ${t} "${@}" 2>"${TMP_DIR}/run.${pid}"
-        ret=$?
-    else
-        "${@}" 2>"${TMP_DIR}/run.${pid}"
-        ret=$?
-    fi
-
-    if [ ${ret} -ne 0 ]
-    then
-        {
-            printf "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: command '"
-            printf "%q " "${@}"
-            printf "' failed with code ${ret}:\n --- BEGIN TRACE ---\n"
-            cat "${TMP_DIR}/run.${pid}"
-            printf " --- END TRACE ---\n"
-        } >&2
-    fi
-    rm "${TMP_DIR}/run.${pid}"
-
-    return ${ret}
+	local ret pid="${BASHPID}" t
+
+	if [ "z${1}" = "z-t" -a "${2}" != "0" ]; then
+		t="${2}"
+		shift 2
+		timeout ${t} "${@}" 2>"${TMP_DIR}/run.${pid}"
+		ret=$?
+	else
+		"${@}" 2>"${TMP_DIR}/run.${pid}"
+		ret=$?
+	fi
+
+	if [ ${ret} -ne 0 ]; then
+		{
+			printf "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: command '"
+			printf "%q " "${@}"
+			printf "' failed with code ${ret}:\n --- BEGIN TRACE ---\n"
+			cat "${TMP_DIR}/run.${pid}"
+			printf " --- END TRACE ---\n"
+		} >&2
+	fi
+	rm "${TMP_DIR}/run.${pid}"
+
+	return ${ret}
 }
 
 # convert any floating point number
@@ -325,166 +308,155 @@ run() {
 # so that no fork is necessary
 # the multiplier must be a power of 10
 float2int() {
-    local f m="$2" a b l v=($1)
-    f=${v[0]}
-
-    # the length of the multiplier - 1
-    l=$(( ${#m} - 1 ))
-
-    # check if the number is in scientific notation
-    if [[ ${f} =~ ^[[:space:]]*(-)?[0-9.]+(e|E)(\+|-)[0-9]+ ]]
-        then
-        # convert it to decimal
-        # unfortunately, this fork cannot be avoided
-        # if you know of a way to avoid it, please let me know
-        f=$(printf "%0.${l}f" ${f})
-    fi
-
-    # split the floating point number
-    # in integer (a) and decimal (b)
-    a=${f/.*/}
-    b=${f/*./}
-
-    # if the integer part is missing
-    # set it to zero
-    [ -z "${a}" ] && a="0"
-
-    # strip leading zeros from the integer part
-    # base 10 convertion
-    a=$((10#$a))
-
-    # check the length of the decimal part
-    # against the length of the multiplier
-    if [ ${#b} -gt ${l} ]
-        then
-        # too many digits - take the most significant
-        b=${b:0:${l}}
-
-    elif [ ${#b} -lt ${l} ]
-        then
-        # too few digits - pad with zero on the right
-        local z="00000000000000000000000" r=$((l - ${#b}))
-        b="${b}${z:0:${r}}"
-    fi
-
-    # strip leading zeros from the decimal part
-    # base 10 convertion
-    b=$((10#$b))
-
-    # store the result
-    FLOAT2INT_RESULT=$(( (a * m) + b ))
+	local f m="$2" a b l v=($1)
+	f=${v[0]}
+
+	# the length of the multiplier - 1
+	l=$((${#m} - 1))
+
+	# check if the number is in scientific notation
+	if [[ ${f} =~ ^[[:space:]]*(-)?[0-9.]+(e|E)(\+|-)[0-9]+ ]]; then
+		# convert it to decimal
+		# unfortunately, this fork cannot be avoided
+		# if you know of a way to avoid it, please let me know
+		f=$(printf "%0.${l}f" ${f})
+	fi
+
+	# split the floating point number
+	# in integer (a) and decimal (b)
+	a=${f/.*/}
+	b=${f/*./}
+
+	# if the integer part is missing
+	# set it to zero
+	[ -z "${a}" ] && a="0"
+
+	# strip leading zeros from the integer part
+	# base 10 convertion
+	a=$((10#$a))
+
+	# check the length of the decimal part
+	# against the length of the multiplier
+	if [ ${#b} -gt ${l} ]; then
+		# too many digits - take the most significant
+		b=${b:0:l}
+
+	elif [ ${#b} -lt ${l} ]; then
+		# too few digits - pad with zero on the right
+		local z="00000000000000000000000" r=$((l - ${#b}))
+		b="${b}${z:0:r}"
+	fi
+
+	# strip leading zeros from the decimal part
+	# base 10 convertion
+	b=$((10#$b))
+
+	# store the result
+	FLOAT2INT_RESULT=$(((a * m) + b))
 }
 
-
 # -----------------------------------------------------------------------------
 # charts check functions
 
 all_charts() {
-    cd "$chartsd"
-    [ $? -ne 0 ] && error "cannot cd to $chartsd" && return 1
+	cd "$chartsd"
+	[ $? -ne 0 ] && error "cannot cd to $chartsd" && return 1
 
-    ls *.chart.sh | sed "s/\.chart\.sh$//g"
+	ls *.chart.sh | sed "s/\.chart\.sh$//g"
 }
 
 declare -A charts_enable_keyword=(
-          ['apache']="force"
-        ['cpu_apps']="force"
-         ['cpufreq']="force"
-         ['example']="force"
-            ['exim']="force"
-         ['hddtemp']="force"
-    ['load_average']="force"
-        ['mem_apps']="force"
-           ['mysql']="force"
-           ['nginx']="force"
-          ['phpfpm']="force"
-         ['postfix']="force"
-         ['sensors']="force"
-           ['squid']="force"
-          ['tomcat']="force"
-    )
+	['apache']="force"
+	['cpu_apps']="force"
+	['cpufreq']="force"
+	['example']="force"
+	['exim']="force"
+	['hddtemp']="force"
+	['load_average']="force"
+	['mem_apps']="force"
+	['mysql']="force"
+	['nginx']="force"
+	['phpfpm']="force"
+	['postfix']="force"
+	['sensors']="force"
+	['squid']="force"
+	['tomcat']="force"
+)
 
 all_enabled_charts() {
-    local charts= enabled= required=
-
-    # find all enabled charts
-
-    for chart in $( all_charts )
-    do
-        MODULE_NAME="${chart}"
-
-        eval "enabled=\$$chart"
-        if [ -z "${enabled}" ]
-            then
-            enabled="${enable_all_charts}"
-        fi
-
-        required="${charts_enable_keyword[${chart}]}"
-        [ -z "${required}" ] && required="yes"
-
-        if [ ! "${enabled}" = "${required}" ]
-        then
-            info "is disabled. Add a line with $chart=$required in '${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf' to enable it (or remove the line that disables it)."
-        else
-            debug "is enabled for auto-detection."
-            local charts="$charts $chart"
-        fi
-    done
-    MODULE_NAME="main"
-
-    local charts2=
-    for chart in $charts
-    do
-        MODULE_NAME="${chart}"
-
-        # check the enabled charts
-        local check="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_check()" )"
-        if [ -z "$check" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_check() function. Disabling it."
-            continue
-        fi
-
-        local create="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_create()" )"
-        if [ -z "$create" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_create() function. Disabling it."
-            continue
-        fi
-
-        local update="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_update()" )"
-        if [ -z "$update" ]
-        then
-            error "module '$chart' does not seem to have a $chart$charts_update() function. Disabling it."
-            continue
-        fi
-
-        # check its config
-        #if [ -f "$userconfd/$chart.conf" ]
-        #then
-        #   if [ ! -z "$( cat "$userconfd/$chart.conf" | sed "s/^ \+//g" | grep -v "^$" | grep -v "^#" | grep -v "^$chart$charts_undescore" )" ]
-        #   then
-        #       error "module's $chart config $userconfd/$chart.conf should only have lines starting with $chart$charts_undescore . Disabling it."
-        #       continue
-        #   fi
-        #fi
-
-        #if [ $dryrunner -eq 1 ]
-        #   then
-        #   "$pluginsd/charts.d.dryrun-helper.sh" "$chart" "$chartsd/$chart.chart.sh" "$userconfd/$chart.conf" >/dev/null
-        #   if [ $? -ne 0 ]
-        #   then
-        #       error "module's $chart did not pass the dry run check. This means it uses global variables not starting with $chart. Disabling it."
-        #       continue
-        #   fi
-        #fi
-
-        local charts2="$charts2 $chart"
-    done
-    MODULE_NAME="main"
-
-    echo $charts2
-    debug "enabled charts: $charts2"
+	local charts= enabled= required=
+
+	# find all enabled charts
+
+	for chart in $(all_charts); do
+		MODULE_NAME="${chart}"
+
+		eval "enabled=\$$chart"
+		if [ -z "${enabled}" ]; then
+			enabled="${enable_all_charts}"
+		fi
+
+		required="${charts_enable_keyword[${chart}]}"
+		[ -z "${required}" ] && required="yes"
+
+		if [ ! "${enabled}" = "${required}" ]; then
+			info "is disabled. Add a line with $chart=$required in '${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf' to enable it (or remove the line that disables it)."
+		else
+			debug "is enabled for auto-detection."
+			local charts="$charts $chart"
+		fi
+	done
+	MODULE_NAME="main"
+
+	local charts2=
+	for chart in $charts; do
+		MODULE_NAME="${chart}"
+
+		# check the enabled charts
+		local check="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_check()")"
+		if [ -z "$check" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_check() function. Disabling it."
+			continue
+		fi
+
+		local create="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_create()")"
+		if [ -z "$create" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_create() function. Disabling it."
+			continue
+		fi
+
+		local update="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_update()")"
+		if [ -z "$update" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_update() function. Disabling it."
+			continue
+		fi
+
+		# check its config
+		#if [ -f "$userconfd/$chart.conf" ]
+		#then
+		#   if [ ! -z "$( cat "$userconfd/$chart.conf" | sed "s/^ \+//g" | grep -v "^$" | grep -v "^#" | grep -v "^$chart$charts_undescore" )" ]
+		#   then
+		#       error "module's $chart config $userconfd/$chart.conf should only have lines starting with $chart$charts_undescore . Disabling it."
+		#       continue
+		#   fi
+		#fi
+
+		#if [ $dryrunner -eq 1 ]
+		#   then
+		#   "$pluginsd/charts.d.dryrun-helper.sh" "$chart" "$chartsd/$chart.chart.sh" "$userconfd/$chart.conf" >/dev/null
+		#   if [ $? -ne 0 ]
+		#   then
+		#       error "module's $chart did not pass the dry run check. This means it uses global variables not starting with $chart. Disabling it."
+		#       continue
+		#   fi
+		#fi
+
+		local charts2="$charts2 $chart"
+	done
+	MODULE_NAME="main"
+
+	echo $charts2
+	debug "enabled charts: $charts2"
 }
 
 # -----------------------------------------------------------------------------
@@ -493,63 +465,56 @@ all_enabled_charts() {
 suffix_retries="_retries"
 suffix_update_every="_update_every"
 active_charts=
-for chart in $( all_enabled_charts )
-do
-    MODULE_NAME="${chart}"
-
-    debug "loading module: '$chartsd/$chart.chart.sh'"
-
-    source "$chartsd/$chart.chart.sh"
-    [ $? -ne 0 ] && warning "Module '$chartsd/$chart.chart.sh' loaded with errors."
-
-    # first load the stock config
-    if [ -f "$stockconfd/$chart.conf" ]
-    then
-        debug "loading module configuration: '$stockconfd/$chart.conf'"
-        source "$stockconfd/$chart.conf"
-        [ $? -ne 0 ] && warning "Config file '$stockconfd/$chart.conf' loaded with errors."
-    else
-        debug "not found module configuration: '$stockconfd/$chart.conf'"
-    fi
-
-    # then load the user config (it overwrites the stock)
-    if [ -f "$userconfd/$chart.conf" ]
-    then
-        debug "loading module configuration: '$userconfd/$chart.conf'"
-        source "$userconfd/$chart.conf"
-        [ $? -ne 0 ] && warning "Config file '$userconfd/$chart.conf' loaded with errors."
-    else
-        debug "not found module configuration: '$userconfd/$chart.conf'"
-
-        if [ -f "$olduserconfd/$chart.conf" ]
-        then
-            # support for very old netdata that had the charts.d module configs in /etc/netdata
-            info "loading module configuration from obsolete location: '$olduserconfd/$chart.conf'"
-            source "$olduserconfd/$chart.conf"
-            [ $? -ne 0 ] && warning "Config file '$olduserconfd/$chart.conf' loaded with errors."
-        fi
-    fi
-
-    eval "dt=\$$chart$suffix_update_every"
-    dt=$(( dt + 1 - 1 )) # make sure it is a number
-    if [ $dt -lt $update_every ]
-    then
-        eval "$chart$suffix_update_every=$update_every"
-    fi
-
-    $chart$charts_check
-    if [ $? -eq 0 ]
-    then
-        debug "module '$chart' activated"
-        active_charts="$active_charts $chart"
-    else
-        error "module's '$chart' check() function reports failure."
-    fi
+for chart in $(all_enabled_charts); do
+	MODULE_NAME="${chart}"
+
+	debug "loading module: '$chartsd/$chart.chart.sh'"
+
+	source "$chartsd/$chart.chart.sh"
+	[ $? -ne 0 ] && warning "Module '$chartsd/$chart.chart.sh' loaded with errors."
+
+	# first load the stock config
+	if [ -f "$stockconfd/$chart.conf" ]; then
+		debug "loading module configuration: '$stockconfd/$chart.conf'"
+		source "$stockconfd/$chart.conf"
+		[ $? -ne 0 ] && warning "Config file '$stockconfd/$chart.conf' loaded with errors."
+	else
+		debug "not found module configuration: '$stockconfd/$chart.conf'"
+	fi
+
+	# then load the user config (it overwrites the stock)
+	if [ -f "$userconfd/$chart.conf" ]; then
+		debug "loading module configuration: '$userconfd/$chart.conf'"
+		source "$userconfd/$chart.conf"
+		[ $? -ne 0 ] && warning "Config file '$userconfd/$chart.conf' loaded with errors."
+	else
+		debug "not found module configuration: '$userconfd/$chart.conf'"
+
+		if [ -f "$olduserconfd/$chart.conf" ]; then
+			# support for very old netdata that had the charts.d module configs in /etc/netdata
+			info "loading module configuration from obsolete location: '$olduserconfd/$chart.conf'"
+			source "$olduserconfd/$chart.conf"
+			[ $? -ne 0 ] && warning "Config file '$olduserconfd/$chart.conf' loaded with errors."
+		fi
+	fi
+
+	eval "dt=\$$chart$suffix_update_every"
+	dt=$((dt + 1 - 1)) # make sure it is a number
+	if [ $dt -lt $update_every ]; then
+		eval "$chart$suffix_update_every=$update_every"
+	fi
+
+	$chart$charts_check
+	if [ $? -eq 0 ]; then
+		debug "module '$chart' activated"
+		active_charts="$active_charts $chart"
+	else
+		error "module's '$chart' check() function reports failure."
+	fi
 done
 MODULE_NAME="main"
 debug "activated modules: $active_charts"
 
-
 # -----------------------------------------------------------------------------
 # check overwrites
 
@@ -558,28 +523,24 @@ debug_time=
 test $debug -eq 1 && debug_time=tellwork
 
 # if we only need a specific chart, remove all the others
-if [ ! -z "${chart_only}" ]
-then
-    debug "requested to run only for: '${chart_only}'"
-    check_charts=
-    for chart in $active_charts
-    do
-        if [ "$chart" = "$chart_only" ]
-        then
-            check_charts="$chart"
-            break
-        fi
-    done
-    active_charts="$check_charts"
+if [ ! -z "${chart_only}" ]; then
+	debug "requested to run only for: '${chart_only}'"
+	check_charts=
+	for chart in $active_charts; do
+		if [ "$chart" = "$chart_only" ]; then
+			check_charts="$chart"
+			break
+		fi
+	done
+	active_charts="$check_charts"
 fi
 debug "activated charts: $active_charts"
 
 # stop if we just need a pre-check
-if [ $check -eq 1 ]
-then
-    info "CHECK RESULT"
-    info "Will run the charts: $active_charts"
-    exit 0
+if [ $check -eq 1 ]; then
+	info "CHECK RESULT"
+	info "Will run the charts: $active_charts"
+	exit 0
 fi
 
 # -----------------------------------------------------------------------------
@@ -590,24 +551,21 @@ cd "${TMP_DIR}" || exit 1
 # create charts
 
 run_charts=
-for chart in $active_charts
-do
-    MODULE_NAME="${chart}"
-
-    debug "calling '$chart$charts_create()'..."
-    $chart$charts_create
-    if [ $? -eq 0 ]
-    then
-        run_charts="$run_charts $chart"
-        debug "'$chart' initialized."
-    else
-        error "module's '$chart' function '$chart$charts_create()' reports failure."
-    fi
+for chart in $active_charts; do
+	MODULE_NAME="${chart}"
+
+	debug "calling '$chart$charts_create()'..."
+	$chart$charts_create
+	if [ $? -eq 0 ]; then
+		run_charts="$run_charts $chart"
+		debug "'$chart' initialized."
+	else
+		error "module's '$chart' function '$chart$charts_create()' reports failure."
+	fi
 done
 MODULE_NAME="main"
 debug "run_charts='$run_charts'"
 
-
 # -----------------------------------------------------------------------------
 # update dimensions
 
@@ -615,129 +573,119 @@ debug "run_charts='$run_charts'"
 
 declare -A charts_last_update=() charts_update_every=() charts_retries=() charts_next_update=() charts_run_counter=() charts_serial_failures=()
 global_update() {
-    local exit_at \
-        c=0 dt ret last_ms exec_start_ms exec_end_ms \
-        chart now_charts=() next_charts=($run_charts) \
-        next_ms x seconds millis
-
-    # return the current time in ms in $now_ms
-    ${current_time_ms}
-
-    exit_at=$(( now_ms + (restart_timeout * 1000) ))
-
-    for chart in $run_charts
-    do
-        eval "charts_update_every[$chart]=\$$chart$suffix_update_every"
-        test -z "${charts_update_every[$chart]}" && charts_update_every[$chart]=$update_every
-
-        eval "charts_retries[$chart]=\$$chart$suffix_retries"
-        test -z "${charts_retries[$chart]}" && charts_retries[$chart]=10
-
-        charts_last_update[$chart]=$((now_ms - (now_ms % (charts_update_every[$chart] * 1000) ) ))
-        charts_next_update[$chart]=$(( charts_last_update[$chart] + (charts_update_every[$chart] * 1000) ))
-        charts_run_counter[$chart]=0
-        charts_serial_failures[$chart]=0
-
-        echo "CHART netdata.plugin_chartsd_$chart '' 'Execution time for $chart plugin' 'milliseconds / run' charts.d netdata.plugin_charts area 145000 ${charts_update_every[$chart]}"
-        echo "DIMENSION run_time 'run time' absolute 1 1"
-    done
-
-    # the main loop
-    while [ "${#next_charts[@]}" -gt 0 ]
-    do
-        c=$((c + 1))
-        now_charts=("${next_charts[@]}")
-        next_charts=()
-
-        # return the current time in ms in $now_ms
-        ${current_time_ms}
-
-        for chart in "${now_charts[@]}"
-        do
-            MODULE_NAME="${chart}"
-
-            if [ ${now_ms} -ge ${charts_next_update[$chart]} ]
-            then
-                last_ms=${charts_last_update[$chart]}
-                dt=$(( (now_ms - last_ms) ))
-
-                charts_last_update[$chart]=${now_ms}
-
-                while [ ${charts_next_update[$chart]} -lt ${now_ms} ]
-                do
-                    charts_next_update[$chart]=$(( charts_next_update[$chart] + (charts_update_every[$chart] * 1000) ))
-                done
-
-                # the first call should not give a duration
-                # so that netdata calibrates to current time
-                dt=$(( dt * 1000 ))
-                charts_run_counter[$chart]=$(( charts_run_counter[$chart] + 1 ))
-                if [ ${charts_run_counter[$chart]} -eq 1 ]
-                    then
-                    dt=
-                fi
-
-                exec_start_ms=$now_ms
-                $chart$charts_update $dt
-                ret=$?
-
-                # return the current time in ms in $now_ms
-                ${current_time_ms}; exec_end_ms=$now_ms
-
-                echo "BEGIN netdata.plugin_chartsd_$chart $dt"
-                echo "SET run_time = $(( exec_end_ms - exec_start_ms ))"
-                echo "END"
-
-                if [ $ret -eq 0 ]
-                then
-                    charts_serial_failures[$chart]=0
-                    next_charts+=($chart)
-                else
-                    charts_serial_failures[$chart]=$(( charts_serial_failures[$chart] + 1 ))
-
-                    if [ ${charts_serial_failures[$chart]} -gt ${charts_retries[$chart]} ]
-                        then
-                        error "module's '$chart' update() function reported failure ${charts_serial_failures[$chart]} times. Disabling it."
-                    else
-                        error "module's '$chart' update() function reports failure. Will keep trying for a while."
-                        next_charts+=($chart)
-                    fi
-                fi
-            else
-                next_charts+=($chart)
-            fi
-        done
-        MODULE_NAME="${chart}"
-
-        # wait the time you are required to
-        next_ms=$((now_ms + (update_every * 1000 * 100) ))
-        for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done
-        next_ms=$((next_ms - now_ms))
-
-        if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ]
-            then
-            next_ms=$(( next_ms + current_time_ms_accuracy ))
-            seconds=$(( next_ms / 1000 ))
-            millis=$(( next_ms % 1000 ))
-            if [ ${millis} -lt 10  ]
-                then
-                millis="00${millis}"
-            elif [ ${millis} -lt 100 ]
-                then
-                millis="0${millis}"
-            fi
-
-            debug "sleeping for ${seconds}.${millis} seconds."
-            ${mysleep} ${seconds}.${millis}
-        else
-            debug "sleeping for ${update_every} seconds."
-            ${mysleep} $update_every
-        fi
-
-        test ${now_ms} -ge ${exit_at} && exit 0
-    done
-
-    fatal "nothing left to do, exiting..."
+	local exit_at \
+		c=0 dt ret last_ms exec_start_ms exec_end_ms \
+		chart now_charts=() next_charts=($run_charts) \
+		next_ms x seconds millis
+
+	# return the current time in ms in $now_ms
+	${current_time_ms}
+
+	exit_at=$((now_ms + (restart_timeout * 1000)))
+
+	for chart in $run_charts; do
+		eval "charts_update_every[$chart]=\$$chart$suffix_update_every"
+		test -z "${charts_update_every[$chart]}" && charts_update_every[$chart]=$update_every
+
+		eval "charts_retries[$chart]=\$$chart$suffix_retries"
+		test -z "${charts_retries[$chart]}" && charts_retries[$chart]=10
+
+		charts_last_update[$chart]=$((now_ms - (now_ms % (charts_update_every[$chart] * 1000))))
+		charts_next_update[$chart]=$((charts_last_update[$chart] + (charts_update_every[$chart] * 1000)))
+		charts_run_counter[$chart]=0
+		charts_serial_failures[$chart]=0
+
+		echo "CHART netdata.plugin_chartsd_$chart '' 'Execution time for $chart plugin' 'milliseconds / run' charts.d netdata.plugin_charts area 145000 ${charts_update_every[$chart]}"
+		echo "DIMENSION run_time 'run time' absolute 1 1"
+	done
+
+	# the main loop
+	while [ "${#next_charts[@]}" -gt 0 ]; do
+		c=$((c + 1))
+		now_charts=("${next_charts[@]}")
+		next_charts=()
+
+		# return the current time in ms in $now_ms
+		${current_time_ms}
+
+		for chart in "${now_charts[@]}"; do
+			MODULE_NAME="${chart}"
+
+			if [ ${now_ms} -ge ${charts_next_update[$chart]} ]; then
+				last_ms=${charts_last_update[$chart]}
+				dt=$((now_ms - last_ms))
+
+				charts_last_update[$chart]=${now_ms}
+
+				while [ ${charts_next_update[$chart]} -lt ${now_ms} ]; do
+					charts_next_update[$chart]=$((charts_next_update[$chart] + (charts_update_every[$chart] * 1000)))
+				done
+
+				# the first call should not give a duration
+				# so that netdata calibrates to current time
+				dt=$((dt * 1000))
+				charts_run_counter[$chart]=$((charts_run_counter[$chart] + 1))
+				if [ ${charts_run_counter[$chart]} -eq 1 ]; then
+					dt=
+				fi
+
+				exec_start_ms=$now_ms
+				$chart$charts_update $dt
+				ret=$?
+
+				# return the current time in ms in $now_ms
+				${current_time_ms}
+				exec_end_ms=$now_ms
+
+				echo "BEGIN netdata.plugin_chartsd_$chart $dt"
+				echo "SET run_time = $((exec_end_ms - exec_start_ms))"
+				echo "END"
+
+				if [ $ret -eq 0 ]; then
+					charts_serial_failures[$chart]=0
+					next_charts+=($chart)
+				else
+					charts_serial_failures[$chart]=$((charts_serial_failures[$chart] + 1))
+
+					if [ ${charts_serial_failures[$chart]} -gt ${charts_retries[$chart]} ]; then
+						error "module's '$chart' update() function reported failure ${charts_serial_failures[$chart]} times. Disabling it."
+					else
+						error "module's '$chart' update() function reports failure. Will keep trying for a while."
+						next_charts+=($chart)
+					fi
+				fi
+			else
+				next_charts+=($chart)
+			fi
+		done
+		MODULE_NAME="${chart}"
+
+		# wait the time you are required to
+		next_ms=$((now_ms + (update_every * 1000 * 100)))
+		for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done
+		next_ms=$((next_ms - now_ms))
+
+		if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ]; then
+			next_ms=$((next_ms + current_time_ms_accuracy))
+			seconds=$((next_ms / 1000))
+			millis=$((next_ms % 1000))
+			if [ ${millis} -lt 10 ]; then
+				millis="00${millis}"
+			elif [ ${millis} -lt 100 ]; then
+				millis="0${millis}"
+			fi
+
+			debug "sleeping for ${seconds}.${millis} seconds."
+			${mysleep} ${seconds}.${millis}
+		else
+			debug "sleeping for ${update_every} seconds."
+			${mysleep} $update_every
+		fi
+
+		test ${now_ms} -ge ${exit_at} && exit 0
+	done
+
+	fatal "nothing left to do, exiting..."
 }
 
 global_update
diff --git a/collectors/charts.d.plugin/cpu_apps/README.md b/collectors/charts.d.plugin/cpu_apps/README.md
index cd8adf0a2..a32a6330a 100644
--- a/collectors/charts.d.plugin/cpu_apps/README.md
+++ b/collectors/charts.d.plugin/cpu_apps/README.md
@@ -1,2 +1,6 @@
+# cpu_apps
+
 > THIS MODULE IS OBSOLETE.
-> USE APPS.PLUGIN.
+> USE [APPS.PLUGIN](../../apps.plugin).
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fcpu_apps%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/cpu_apps/cpu_apps.chart.sh b/collectors/charts.d.plugin/cpu_apps/cpu_apps.chart.sh
index 869464afe..e91c46d54 100644
--- a/collectors/charts.d.plugin/cpu_apps/cpu_apps.chart.sh
+++ b/collectors/charts.d.plugin/cpu_apps/cpu_apps.chart.sh
@@ -23,8 +23,7 @@ cpu_apps_check() {
 	#  - 0 to enable the chart
 	#  - 1 to disable the chart
 
-	if [ -z "$cpu_apps_apps" ]
-	then
+	if [ -z "$cpu_apps_apps" ]; then
 		error "manual configuration required: please set cpu_apps_apps='command1 command2 ...' in $confd/cpu_apps_apps.conf"
 		return 1
 	fi
@@ -38,8 +37,7 @@ cpu_apps_create() {
 	echo "CHART chartsd_apps.cpu '' 'Apps CPU' 'milliseconds / $cpu_apps_update_every sec' apps apps stacked 20001 $cpu_apps_update_every"
 
 	local x=
-	for x in $cpu_apps_apps
-	do
+	for x in $cpu_apps_apps; do
 		echo "DIMENSION $x $x incremental 1000 $cpu_apps_clockticks"
 
 		# this string is needed later in the update() function
@@ -55,15 +53,15 @@ cpu_apps_update() {
 	# remember: KEEP IT SIMPLE AND SHORT
 
 	echo "BEGIN chartsd_apps.cpu"
-	ps -o pid,comm -C "$cpu_apps_apps" |\
-		grep -v "COMMAND" |\
+	ps -o pid,comm -C "$cpu_apps_apps" |
+		grep -v "COMMAND" |
 		(
-			while read pid name
-			do
-				echo "$name+=`cat /proc/$pid/stat | cut -d ' ' -f 14-15`"
+			while read pid name; do
+				echo "$name+=$(cat /proc/$pid/stat | cut -d ' ' -f 14-15)"
 			done
-		) |\
-		(	sed -e "s/ \+/ /g" -e "s/ /+/g";
+		) |
+		(
+			sed -e "s/ \+/ /g" -e "s/ /+/g"
 			echo "$cpu_apps_bc_finalze"
 		) | bc
 	echo "END"
diff --git a/collectors/charts.d.plugin/cpufreq/README.md b/collectors/charts.d.plugin/cpufreq/README.md
index d82951aac..84883f583 100644
--- a/collectors/charts.d.plugin/cpufreq/README.md
+++ b/collectors/charts.d.plugin/cpufreq/README.md
@@ -1,2 +1,6 @@
+# cpufreq
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE THE [PROC PLUGIN](../../proc.plugin) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fcpufreq%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/cpufreq/cpufreq.chart.sh b/collectors/charts.d.plugin/cpufreq/cpufreq.chart.sh
index 1fc6caabf..68708d911 100644
--- a/collectors/charts.d.plugin/cpufreq/cpufreq.chart.sh
+++ b/collectors/charts.d.plugin/cpufreq/cpufreq.chart.sh
@@ -30,7 +30,7 @@ cpufreq_check() {
 	#  - 0 to enable the chart
 	#  - 1 to disable the chart
 
-	[ -z "$( cpufreq_find_all_files "$cpufreq_sys_dir" )" ] && return 1
+	[ -z "$(cpufreq_find_all_files "$cpufreq_sys_dir")" ] && return 1
 	return 0
 }
 
@@ -47,16 +47,15 @@ cpufreq_create() {
 	echo >>"$TMP_DIR/cpufreq.sh" "echo \"BEGIN cpu.cpufreq \$1\""
 
 	i=0
-	for file in $( cpufreq_find_all_files "$cpufreq_sys_dir" | sort -u )
-	do
-		i=$(( i + 1 ))
-		dir=$( dirname "$file" )
+	for file in $(cpufreq_find_all_files "$cpufreq_sys_dir" | sort -u); do
+		i=$((i + 1))
+		dir=$(dirname "$file")
 		cpu=
 
-		[ -f "$dir/affected_cpus" ] && cpu=$( cat "$dir/affected_cpus" )
+		[ -f "$dir/affected_cpus" ] && cpu=$(cat "$dir/affected_cpus")
 		[ -z "$cpu" ] && cpu="$i.a"
 
-		id="$( fixid "cpu$cpu" )"
+		id="$(fixid "cpu$cpu")"
 
 		debug "file='$file', dir='$dir', cpu='$cpu', id='$id'"
 
@@ -68,7 +67,7 @@ cpufreq_create() {
 	[ $cpufreq_source_update -eq 1 ] && echo >>"$TMP_DIR/cpufreq.sh" "}"
 
 	# ok, load the function cpufreq_update() we created
-        # shellcheck disable=SC1090
+	# shellcheck disable=SC1090
 	[ $cpufreq_source_update -eq 1 ] && . "$TMP_DIR/cpufreq.sh"
 
 	return 0
@@ -82,9 +81,8 @@ cpufreq_update() {
 	# do all the work to collect / calculate the values
 	# for each dimension
 	# remember: KEEP IT SIMPLE AND SHORT
-        # shellcheck disable=SC1090
+	# shellcheck disable=SC1090
 	[ $cpufreq_source_update -eq 0 ] && . "$TMP_DIR/cpufreq.sh" "$1"
 
 	return 0
 }
-
diff --git a/collectors/charts.d.plugin/example/README.md b/collectors/charts.d.plugin/example/README.md
index bfd5e210a..e62f76777 100644
--- a/collectors/charts.d.plugin/example/README.md
+++ b/collectors/charts.d.plugin/example/README.md
@@ -1,2 +1,6 @@
+# Example
+
 This is just an example charts.d data collector.
 
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fexample%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/example/example.chart.sh b/collectors/charts.d.plugin/example/example.chart.sh
index 1562c597a..8bae570a3 100644
--- a/collectors/charts.d.plugin/example/example.chart.sh
+++ b/collectors/charts.d.plugin/example/example.chart.sh
@@ -44,23 +44,20 @@ example_get() {
 	example_value1=$RANDOM
 	example_value2=$RANDOM
 	example_value3=$RANDOM
-	example_value4=$((8192 + (RANDOM * 16383 / 32767) ))
+	example_value4=$((8192 + (RANDOM * 16383 / 32767)))
 
-	if [ $example_count -gt 0 ]
-	then
+	if [ $example_count -gt 0 ]; then
 		example_count=$((example_count - 1))
 
-		[ $example_last -gt 16383 ] && example_value4=$((example_last + (RANDOM * ( (32767 - example_last) / 2) / 32767)))
+		[ $example_last -gt 16383 ] && example_value4=$((example_last + (RANDOM * ((32767 - example_last) / 2) / 32767)))
 		[ $example_last -le 16383 ] && example_value4=$((example_last - (RANDOM * (example_last / 2) / 32767)))
 	else
-		example_count=$((1 + (RANDOM * 5 / 32767) ))
+		example_count=$((1 + (RANDOM * 5 / 32767)))
 
-		if [ $example_last -gt 16383 ] && [ $example_value4 -gt 16383 ]
-		then
+		if [ $example_last -gt 16383 ] && [ $example_value4 -gt 16383 ]; then
 			example_value4=$((example_value4 - 16383))
 		fi
-		if [ $example_last -le 16383 ] && [ $example_value4 -lt 16383 ]
-		then
+		if [ $example_last -le 16383 ] && [ $example_value4 -lt 16383 ]; then
 			example_value4=$((example_value4 + 16383))
 		fi
 	fi
diff --git a/collectors/charts.d.plugin/exim/README.md b/collectors/charts.d.plugin/exim/README.md
index d82951aac..b4c853895 100644
--- a/collectors/charts.d.plugin/exim/README.md
+++ b/collectors/charts.d.plugin/exim/README.md
@@ -1,2 +1,6 @@
+# exim
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/exim) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fexim%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/exim/exim.chart.sh b/collectors/charts.d.plugin/exim/exim.chart.sh
index 8099a7249..7b0ef70d2 100644
--- a/collectors/charts.d.plugin/exim/exim.chart.sh
+++ b/collectors/charts.d.plugin/exim/exim.chart.sh
@@ -17,14 +17,12 @@ exim_update_every=5
 exim_priority=60000
 
 exim_check() {
-    if [ -z "${exim_command}" ]
-    then
-        require_cmd exim || return 1
-        exim_command="${EXIM_CMD}"
-    fi
-
-	if [ "$(${exim_command} -bpc 2>&1 | grep -c denied)" -ne 0 ]
-	then
+	if [ -z "${exim_command}" ]; then
+		require_cmd exim || return 1
+		exim_command="${EXIM_CMD}"
+	fi
+
+	if [ "$(${exim_command} -bpc 2>&1 | grep -c denied)" -ne 0 ]; then
 		error "permission denied - please set 'queue_list_requires_admin = false' in your exim options file"
 		return 1
 	fi
@@ -33,16 +31,16 @@ exim_check() {
 }
 
 exim_create() {
-    cat <<EOF
+	cat <<EOF
 CHART exim_local.qemails '' "Exim Queue Emails" "emails" queue exim.queued.emails line $((exim_priority + 1)) $exim_update_every
 DIMENSION emails '' absolute 1 1
 EOF
-    return 0
+	return 0
 }
 
 exim_update() {
-    echo "BEGIN exim_local.qemails $1"
-    echo "SET emails = $(run "${exim_command}" -bpc)"
-    echo "END"
-    return 0
+	echo "BEGIN exim_local.qemails $1"
+	echo "SET emails = $(run "${exim_command}" -bpc)"
+	echo "END"
+	return 0
 }
diff --git a/collectors/charts.d.plugin/hddtemp/README.md b/collectors/charts.d.plugin/hddtemp/README.md
index 98f18900c..86a2e19e6 100644
--- a/collectors/charts.d.plugin/hddtemp/README.md
+++ b/collectors/charts.d.plugin/hddtemp/README.md
@@ -1,8 +1,8 @@
-> THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
-
 # hddtemp
 
+> THIS MODULE IS OBSOLETE.
+> USE [THE PYTHON ONE](../../python.d.plugin/hddtemp) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
 The plugin will collect temperatures from disks 
 
 It will create one chart with all active disks
@@ -26,3 +26,5 @@ hddtemp_disks=()
 ```
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fhddtemp%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/hddtemp/hddtemp.chart.sh b/collectors/charts.d.plugin/hddtemp/hddtemp.chart.sh
index e90310981..a4cef3c3b 100644
--- a/collectors/charts.d.plugin/hddtemp/hddtemp.chart.sh
+++ b/collectors/charts.d.plugin/hddtemp/hddtemp.chart.sh
@@ -21,7 +21,7 @@ hddtemp_priority=90000
 
 # _check is called once, to find out if this chart should be enabled or not
 hddtemp_check() {
-    require_cmd nc || return 1
+	require_cmd nc || return 1
 	run nc $hddtemp_host $hddtemp_port && return 0 || return 1
 }
 
@@ -29,17 +29,17 @@ hddtemp_check() {
 hddtemp_create() {
 	if [ ${#hddtemp_disks[@]} -eq 0 ]; then
 		local all
-		all=$(nc $hddtemp_host $hddtemp_port )
+		all=$(nc $hddtemp_host $hddtemp_port)
 		unset hddtemp_disks
 		# shellcheck disable=SC2190,SC2207
-		hddtemp_disks=( $(grep -Po '/dev/[^|]+' <<< "$all" | cut -c 6-) )
+		hddtemp_disks=($(grep -Po '/dev/[^|]+' <<<"$all" | cut -c 6-))
 	fi
-#	local disk_names
-#	disk_names=(`sed -e 's/||/\n/g;s/^|//' <<< "$all" | cut -d '|' -f2 | tr ' ' '_'`)
+	#	local disk_names
+	#	disk_names=(`sed -e 's/||/\n/g;s/^|//' <<< "$all" | cut -d '|' -f2 | tr ' ' '_'`)
 
 	echo "CHART hddtemp.temperature 'disks_temp' 'temperature' 'Celsius' 'Disks temperature' 'hddtemp.temp' line $((hddtemp_priority)) $hddtemp_update_every"
-	for i in $(seq 0 $((${#hddtemp_disks[@]}-1))); do
-#		echo "DIMENSION ${hddtemp_disks[i]} ${disk_names[i]} absolute 1 1"
+	for i in $(seq 0 $((${#hddtemp_disks[@]} - 1))); do
+		#		echo "DIMENSION ${hddtemp_disks[i]} ${disk_names[i]} absolute 1 1"
 		echo "DIMENSION ${hddtemp_disks[$i]} '' absolute 1 1"
 	done
 	return 0
@@ -49,12 +49,12 @@ hddtemp_create() {
 #hddtemp_last=0
 #hddtemp_count=0
 hddtemp_update() {
-#        local all=( `nc $hddtemp_host $hddtemp_port | sed -e 's/||/\n/g;s/^|//' | cut -d '|' -f3` )
-#	local all=( `nc $hddtemp_host $hddtemp_port | awk 'BEGIN { FS="|" };{i=4; while (i <= NF) {print $i+0;i+=5;};}'` )
+	#        local all=( `nc $hddtemp_host $hddtemp_port | sed -e 's/||/\n/g;s/^|//' | cut -d '|' -f3` )
+	#	local all=( `nc $hddtemp_host $hddtemp_port | awk 'BEGIN { FS="|" };{i=4; while (i <= NF) {print $i+0;i+=5;};}'` )
 	OLD_IFS=$IFS
 	set -f
 	# shellcheck disable=SC2207
-	IFS="|" all=( $(nc $hddtemp_host $hddtemp_port 2>/dev/null) )
+	IFS="|" all=($(nc $hddtemp_host $hddtemp_port 2>/dev/null))
 	set +f
 	IFS=$OLD_IFS
 
@@ -66,9 +66,9 @@ hddtemp_update() {
 	# write the result of the work.
 	echo "BEGIN hddtemp.temperature $1"
 	end=${#hddtemp_disks[@]}
-	for ((i=0; i<end; i++)); do
+	for ((i = 0; i < end; i++)); do
 		# temperature - this will turn SLP to zero
-                t=$(( ${all[ $((i * 5 + 3)) ]} ))
+		t=$((all[$((i * 5 + 3))]))
 		echo "SET ${hddtemp_disks[$i]} = $t"
 	done
 	echo "END"
diff --git a/collectors/charts.d.plugin/libreswan/README.md b/collectors/charts.d.plugin/libreswan/README.md
index 41026cf72..18c645071 100644
--- a/collectors/charts.d.plugin/libreswan/README.md
+++ b/collectors/charts.d.plugin/libreswan/README.md
@@ -40,3 +40,5 @@ netdata ALL = (root) NOPASSWD: /sbin/ipsec whack --trafficstatus
 Make sure the path `/sbin/ipsec` matches your setup (execute `which ipsec` to find the right path).
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Flibreswan%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/libreswan/libreswan.chart.sh b/collectors/charts.d.plugin/libreswan/libreswan.chart.sh
index 6e29f8473..1a8f90b11 100644
--- a/collectors/charts.d.plugin/libreswan/libreswan.chart.sh
+++ b/collectors/charts.d.plugin/libreswan/libreswan.chart.sh
@@ -39,8 +39,7 @@ declare -A libreswan_tunnel_charts=()
 
 # run the ipsec command
 libreswan_ipsec() {
-	if [ ${libreswan_sudo} -ne 0 ]
-		then
+	if [ ${libreswan_sudo} -ne 0 ]; then
 		sudo -n "${IPSEC_CMD}" "${@}"
 		return $?
 	else
@@ -61,15 +60,15 @@ libreswan_get() {
 	libreswan_connected_tunnels=()
 
 	# convert the ipsec command output to a shell script
-        # and source it to get the values
-        # shellcheck disable=SC1090
+	# and source it to get the values
+	# shellcheck disable=SC1090
 	source <(
 		{
-			libreswan_ipsec whack --status;
-			libreswan_ipsec whack --trafficstatus;
+			libreswan_ipsec whack --status
+			libreswan_ipsec whack --trafficstatus
 		} | sed -n \
-				-e "s|[0-9]\+ #\([0-9]\+\): \"\(.*\)\".*IPsec SA established.*newest IPSEC.*|libreswan_connected_tunnels[\"\1\"]=\"\2\"|p" \
-				-e "s|[0-9]\+ #\([0-9]\+\): \"\(.*\)\",.* add_time=\([0-9]\+\),.* inBytes=\([0-9]\+\),.* outBytes=\([0-9]\+\).*|libreswan_traffic_in[\"\1\"]=\"\4\"; libreswan_traffic_out[\"\1\"]=\"\5\"; libreswan_established_add_time[\"\1\"]=\"\3\";|p"
+			-e "s|[0-9]\+ #\([0-9]\+\): \"\(.*\)\".*IPsec SA established.*newest IPSEC.*|libreswan_connected_tunnels[\"\1\"]=\"\2\"|p" \
+			-e "s|[0-9]\+ #\([0-9]\+\): \"\(.*\)\",.* add_time=\([0-9]\+\),.* inBytes=\([0-9]\+\),.* outBytes=\([0-9]\+\).*|libreswan_traffic_in[\"\1\"]=\"\4\"; libreswan_traffic_out[\"\1\"]=\"\5\"; libreswan_established_add_time[\"\1\"]=\"\3\";|p"
 	) || return 1
 
 	# check we got some data
@@ -88,10 +87,9 @@ libreswan_check() {
 
 	# make sure it is libreswan
 	# shellcheck disable=SC2143
-	if [ -z "$(ipsec --version | grep -i libreswan)" ]
-	then
-	    error "ipsec command is not Libreswan. Disabling Libreswan plugin."
-	    return 1
+	if [ -z "$(ipsec --version | grep -i libreswan)" ]; then
+		error "ipsec command is not Libreswan. Disabling Libreswan plugin."
+		return 1
 	fi
 
 	# check that we can collect data
@@ -125,8 +123,7 @@ EOF
 # _create is called once, to create the charts
 libreswan_create() {
 	local n
-	for n in "${!libreswan_connected_tunnels[@]}"
-	do
+	for n in "${!libreswan_connected_tunnels[@]}"; do
 		libreswan_create_one "${n}"
 	done
 	return 0
@@ -143,10 +140,10 @@ libreswan_update_one() {
 
 	[ -z "${id}" ] && libreswan_create_one "${name}"
 
-	uptime=$(( libreswan_now - libreswan_established_add_time[${n}] ))
+	uptime=$((libreswan_now - libreswan_established_add_time[${n}]))
 	[ ${uptime} -lt 0 ] && uptime=0
 
-		# write the result of the work.
+	# write the result of the work.
 	cat <<VALUESEOF
 BEGIN libreswan.${id}_net ${microseconds}
 SET in = ${libreswan_traffic_in[${n}]}
@@ -167,8 +164,7 @@ libreswan_update() {
 	libreswan_now=$(date +%s)
 
 	local n
-	for n in "${!libreswan_connected_tunnels[@]}"
-	do
+	for n in "${!libreswan_connected_tunnels[@]}"; do
 		libreswan_update_one "${n}" "${@}"
 	done
 
diff --git a/collectors/charts.d.plugin/load_average/README.md b/collectors/charts.d.plugin/load_average/README.md
index 39d3b8189..ef84b5bd2 100644
--- a/collectors/charts.d.plugin/load_average/README.md
+++ b/collectors/charts.d.plugin/load_average/README.md
@@ -1,2 +1,6 @@
+# load_average
+
 > THIS MODULE IS OBSOLETE.
 > THE NETDATA DAEMON COLLECTS LOAD AVERAGE BY ITSELF
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fload_average%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/load_average/load_average.chart.sh b/collectors/charts.d.plugin/load_average/load_average.chart.sh
index b30cb850f..841e3d9f6 100644
--- a/collectors/charts.d.plugin/load_average/load_average.chart.sh
+++ b/collectors/charts.d.plugin/load_average/load_average.chart.sh
@@ -21,8 +21,7 @@ load_average_check() {
 	#  - 0 to enable the chart
 	#  - 1 to disable the chart
 
-	if [ ${load_average_update_every} -lt 5 ]
-		then
+	if [ ${load_average_update_every} -lt 5 ]; then
 		# there is no meaning for shorter than 5 seconds
 		# the kernel changes this value every 5 seconds
 		load_average_update_every=5
@@ -34,7 +33,7 @@ load_average_check() {
 
 load_average_create() {
 	# create a chart with 3 dimensions
-cat <<EOF
+	cat <<EOF
 CHART system.load '' "System Load Average" "load" load system.load line $((load_priority + 1)) $load_average_update_every
 DIMENSION load1 '1 min' absolute 1 100
 DIMENSION load5 '5 mins' absolute 1 100
@@ -52,10 +51,10 @@ load_average_update() {
 	# here we parse the system average load
 	# it is decimal (with 2 decimal digits), so we remove the dot and
 	# at the definition we have divisor = 100, to have the graph show the right value
-	loadavg="`cat /proc/loadavg | sed -e "s/\.//g"`"
-	load1=`echo $loadavg | cut -d ' ' -f 1`
-	load5=`echo $loadavg | cut -d ' ' -f 2`
-	load15=`echo $loadavg | cut -d ' ' -f 3`
+	loadavg="$(cat /proc/loadavg | sed -e "s/\.//g")"
+	load1=$(echo $loadavg | cut -d ' ' -f 1)
+	load5=$(echo $loadavg | cut -d ' ' -f 2)
+	load15=$(echo $loadavg | cut -d ' ' -f 3)
 
 	# write the result of the work.
 	cat <<VALUESEOF
@@ -68,4 +67,3 @@ VALUESEOF
 
 	return 0
 }
-
diff --git a/collectors/charts.d.plugin/loopsleepms.sh.inc b/collectors/charts.d.plugin/loopsleepms.sh.inc
index bdc032b99..e44eff689 100644
--- a/collectors/charts.d.plugin/loopsleepms.sh.inc
+++ b/collectors/charts.d.plugin/loopsleepms.sh.inc
@@ -2,10 +2,9 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 LOOPSLEEP_DATE="$(which date 2>/dev/null || command -v date 2>/dev/null)"
-if [ -z "$LOOPSLEEP_DATE" ]
-    then
-    echo >&2 "$0: ERROR: Cannot find the command 'date' in the system path."
-    exit 1
+if [ -z "$LOOPSLEEP_DATE" ]; then
+	echo >&2 "$0: ERROR: Cannot find the command 'date' in the system path."
+	exit 1
 fi
 
 # -----------------------------------------------------------------------------
@@ -14,14 +13,13 @@ fi
 now_ms=
 LOOPSLEEPMS_HIGHRES=1
 test "$($LOOPSLEEP_DATE +%N)" = "%N" && LOOPSLEEPMS_HIGHRES=0
-test -z "$($LOOPSLEEP_DATE +%N)"     && LOOPSLEEPMS_HIGHRES=0
+test -z "$($LOOPSLEEP_DATE +%N)" && LOOPSLEEPMS_HIGHRES=0
 current_time_ms_from_date() {
-    if [ $LOOPSLEEPMS_HIGHRES -eq 0 ]
-    then
-        now_ms="$($LOOPSLEEP_DATE +'%s')000"
-    else
-        now_ms="$(( $( $LOOPSLEEP_DATE +'%s * 1000 + %-N / 1000000' ) ))"
-    fi
+	if [ $LOOPSLEEPMS_HIGHRES -eq 0 ]; then
+		now_ms="$($LOOPSLEEP_DATE +'%s')000"
+	else
+		now_ms="$(($($LOOPSLEEP_DATE +'%s * 1000 + %-N / 1000000')))"
+	fi
 }
 
 # -----------------------------------------------------------------------------
@@ -32,55 +30,49 @@ current_time_ms_from_uptime_started="${now_ms}"
 current_time_ms_from_uptime_last="${now_ms}"
 current_time_ms_from_uptime_first=0
 current_time_ms_from_uptime() {
-    local up rest arr=() n
-
-    read up rest </proc/uptime
-    if [ $? -ne 0 ]
-        then
-        echo >&2 "$0: Cannot read /proc/uptime - falling back to current_time_ms_from_date()."
-        current_time_ms="current_time_ms_from_date"
-        current_time_ms_from_date
-        current_time_ms_accuracy=1
-        return
-    fi
-
-    arr=(${up//./ })
-
-    if [ ${#arr[1]} -lt 1 ]
-        then
-        n="${arr[0]}000"
-    elif [ ${#arr[1]} -lt 2 ]
-        then
-        n="${arr[0]}${arr[1]}00"
-    elif [ ${#arr[1]} -lt 3 ]
-        then
-        n="${arr[0]}${arr[1]}0"
-    else
-        n="${arr[0]}${arr[1]}"
-    fi
-
-    now_ms=$((current_time_ms_from_uptime_started - current_time_ms_from_uptime_first + n))
-
-    if [ "${now_ms}" -lt "${current_time_ms_from_uptime_last}" ]
-        then
-        echo >&2 "$0: Cannot use current_time_ms_from_uptime() - new time ${now_ms} is older than the last ${current_time_ms_from_uptime_last} - falling back to current_time_ms_from_date()."
-        current_time_ms="current_time_ms_from_date"
-        current_time_ms_from_date
-        current_time_ms_accuracy=1
-    fi
-
-    current_time_ms_from_uptime_last="${now_ms}"
+	local up rest arr=() n
+
+	read up rest </proc/uptime
+	if [ $? -ne 0 ]; then
+		echo >&2 "$0: Cannot read /proc/uptime - falling back to current_time_ms_from_date()."
+		current_time_ms="current_time_ms_from_date"
+		current_time_ms_from_date
+		current_time_ms_accuracy=1
+		return
+	fi
+
+	arr=(${up//./ })
+
+	if [ ${#arr[1]} -lt 1 ]; then
+		n="${arr[0]}000"
+	elif [ ${#arr[1]} -lt 2 ]; then
+		n="${arr[0]}${arr[1]}00"
+	elif [ ${#arr[1]} -lt 3 ]; then
+		n="${arr[0]}${arr[1]}0"
+	else
+		n="${arr[0]}${arr[1]}"
+	fi
+
+	now_ms=$((current_time_ms_from_uptime_started - current_time_ms_from_uptime_first + n))
+
+	if [ "${now_ms}" -lt "${current_time_ms_from_uptime_last}" ]; then
+		echo >&2 "$0: Cannot use current_time_ms_from_uptime() - new time ${now_ms} is older than the last ${current_time_ms_from_uptime_last} - falling back to current_time_ms_from_date()."
+		current_time_ms="current_time_ms_from_date"
+		current_time_ms_from_date
+		current_time_ms_accuracy=1
+	fi
+
+	current_time_ms_from_uptime_last="${now_ms}"
 }
 current_time_ms_from_uptime
 current_time_ms_from_uptime_first="$((now_ms - current_time_ms_from_uptime_started))"
 current_time_ms_from_uptime_last="${current_time_ms_from_uptime_first}"
 current_time_ms="current_time_ms_from_uptime"
 current_time_ms_accuracy=10
-if [ "${current_time_ms_from_uptime_first}" -eq 0 ]
-    then
-    echo >&2 "$0: Invalid setup for current_time_ms_from_uptime() - falling back to current_time_ms_from_date()."
-    current_time_ms="current_time_ms_from_date"
-    current_time_ms_accuracy=1
+if [ "${current_time_ms_from_uptime_first}" -eq 0 ]; then
+	echo >&2 "$0: Invalid setup for current_time_ms_from_uptime() - falling back to current_time_ms_from_date()."
+	current_time_ms="current_time_ms_from_date"
+	current_time_ms_accuracy=1
 fi
 
 # -----------------------------------------------------------------------------
@@ -94,55 +86,48 @@ mysleep_fifo="${NETDATA_CACHE_DIR-/tmp}/.netdata_bash_sleep_timer_fifo"
 [ -p "${mysleep_fifo}" ] && mysleep="mysleep_read"
 
 mysleep_read() {
-    read -t "${1}" <>"${mysleep_fifo}"
-    ret=$?
-    if [ $ret -le 128 ]
-        then
-        echo >&2 "$0: Cannot use read for sleeping (return code ${ret})."
-        mysleep="sleep"
-        ${mysleep} "${1}"
-    fi
+	read -t "${1}" <>"${mysleep_fifo}"
+	ret=$?
+	if [ $ret -le 128 ]; then
+		echo >&2 "$0: Cannot use read for sleeping (return code ${ret})."
+		mysleep="sleep"
+		${mysleep} "${1}"
+	fi
 }
 
 # -----------------------------------------------------------------------------
 # use bash loadable module for sleep
 
 mysleep_builtin() {
-    builtin sleep "${1}"
-    ret=$?
-    if [ $ret -ne 0 ]
-        then
-        echo >&2 "$0: Cannot use builtin sleep for sleeping (return code ${ret})."
-        mysleep="sleep"
-        ${mysleep} "${1}"
-    fi
+	builtin sleep "${1}"
+	ret=$?
+	if [ $ret -ne 0 ]; then
+		echo >&2 "$0: Cannot use builtin sleep for sleeping (return code ${ret})."
+		mysleep="sleep"
+		${mysleep} "${1}"
+	fi
 }
 
-if [ -z "${mysleep}" -a "$((BASH_VERSINFO[0] +0))" -ge 3 -a "${NETDATA_BASH_LOADABLES}" != "DISABLE" ]
-    then
-    # enable modules only for bash version 3+
-
-    for bash_modules_path in ${BASH_LOADABLES_PATH//:/ } "$(pkg-config bash --variable=loadablesdir 2>/dev/null)" "/usr/lib/bash" "/lib/bash" "/lib64/bash" "/usr/local/lib/bash" "/usr/local/lib64/bash"
-    do
-        [ -z "${bash_modules_path}" -o ! -d "${bash_modules_path}" ] && continue
-
-        # check for sleep
-        for bash_module_sleep in "sleep" "sleep.so"
-        do
-            if [ -f "${bash_modules_path}/${bash_module_sleep}" ]
-                then
-                if enable -f "${bash_modules_path}/${bash_module_sleep}" sleep 2>/dev/null
-                    then
-                    mysleep="mysleep_builtin"
-                    # echo >&2 "$0: Using bash loadable ${bash_modules_path}/${bash_module_sleep} for sleep"
-                    break
-                fi
-            fi
-
-        done
-
-        [ ! -z "${mysleep}" ] && break
-    done
+if [ -z "${mysleep}" -a "$((BASH_VERSINFO[0] + 0))" -ge 3 -a "${NETDATA_BASH_LOADABLES}" != "DISABLE" ]; then
+	# enable modules only for bash version 3+
+
+	for bash_modules_path in ${BASH_LOADABLES_PATH//:/ } "$(pkg-config bash --variable=loadablesdir 2>/dev/null)" "/usr/lib/bash" "/lib/bash" "/lib64/bash" "/usr/local/lib/bash" "/usr/local/lib64/bash"; do
+		[ -z "${bash_modules_path}" -o ! -d "${bash_modules_path}" ] && continue
+
+		# check for sleep
+		for bash_module_sleep in "sleep" "sleep.so"; do
+			if [ -f "${bash_modules_path}/${bash_module_sleep}" ]; then
+				if enable -f "${bash_modules_path}/${bash_module_sleep}" sleep 2>/dev/null; then
+					mysleep="mysleep_builtin"
+					# echo >&2 "$0: Using bash loadable ${bash_modules_path}/${bash_module_sleep} for sleep"
+					break
+				fi
+			fi
+
+		done
+
+		[ ! -z "${mysleep}" ] && break
+	done
 fi
 
 # -----------------------------------------------------------------------------
@@ -150,7 +135,6 @@ fi
 
 [ -z "${mysleep}" ] && mysleep="sleep"
 
-
 # -----------------------------------------------------------------------------
 # this function is used to sleep a fraction of a second
 # it calculates the difference between every time is called
@@ -163,60 +147,58 @@ LOOPSLEEPMS_LASTSLEEP=0
 LOOPSLEEPMS_LASTWORK=0
 
 loopsleepms() {
-    local tellwork=0 t="${1}" div s m now mstosleep
-
-    if [ "${t}" = "tellwork" ]
-    then
-        tellwork=1
-        shift
-        t="${1}"
-    fi
-
-    # $t = the time in seconds to wait
-
-    # if high resolution is not supported
-    # just sleep the time requested, in seconds
-    if [ ${LOOPSLEEPMS_HIGHRES} -eq 0 ]
-    then
-        sleep ${t}
-        return
-    fi
-
-    # get the current time, in ms in ${now_ms}
-    ${current_time_ms}
-
-    # calculate ms since last run
-    [ ${LOOPSLEEPMS_LASTRUN} -gt 0 ] && \
-        LOOPSLEEPMS_LASTWORK=$((now_ms - LOOPSLEEPMS_LASTRUN - LOOPSLEEPMS_LASTSLEEP + current_time_ms_accuracy))
-    # echo "# last loop's work took $LOOPSLEEPMS_LASTWORK ms"
-    
-    # remember this run
-    LOOPSLEEPMS_LASTRUN=${now_ms}
-
-    # calculate the next run
-    LOOPSLEEPMS_NEXTRUN=$(( ( now_ms - ( now_ms % ( t * 1000 ) ) ) + ( t * 1000 ) ))
-
-    # calculate ms to sleep
-    mstosleep=$(( LOOPSLEEPMS_NEXTRUN - now_ms + current_time_ms_accuracy ))
-    # echo "# mstosleep is $mstosleep ms"
-
-    # if we are too slow, sleep some time
-    test ${mstosleep} -lt 200 && mstosleep=200
-
-    s=$(( mstosleep / 1000 ))
-    m=$(( mstosleep - (s * 1000) ))
-    [ "${m}" -lt 100 ] && m="0${m}"
-    [ "${m}" -lt 10  ] && m="0${m}"
-
-    test $tellwork -eq 1 && echo >&2 " >>> PERFORMANCE >>> WORK TOOK ${LOOPSLEEPMS_LASTWORK} ms ( $((LOOPSLEEPMS_LASTWORK * 100 / 1000)).$((LOOPSLEEPMS_LASTWORK % 10))% cpu ) >>> SLEEPING ${mstosleep} ms"
-
-    # echo "# sleeping ${s}.${m}"
-    # echo
-    ${mysleep} ${s}.${m}
-
-    # keep the values we need
-    # for our next run
-    LOOPSLEEPMS_LASTSLEEP=$mstosleep
+	local tellwork=0 t="${1}" div s m now mstosleep
+
+	if [ "${t}" = "tellwork" ]; then
+		tellwork=1
+		shift
+		t="${1}"
+	fi
+
+	# $t = the time in seconds to wait
+
+	# if high resolution is not supported
+	# just sleep the time requested, in seconds
+	if [ ${LOOPSLEEPMS_HIGHRES} -eq 0 ]; then
+		sleep ${t}
+		return
+	fi
+
+	# get the current time, in ms in ${now_ms}
+	${current_time_ms}
+
+	# calculate ms since last run
+	[ ${LOOPSLEEPMS_LASTRUN} -gt 0 ] &&
+		LOOPSLEEPMS_LASTWORK=$((now_ms - LOOPSLEEPMS_LASTRUN - LOOPSLEEPMS_LASTSLEEP + current_time_ms_accuracy))
+	# echo "# last loop's work took $LOOPSLEEPMS_LASTWORK ms"
+
+	# remember this run
+	LOOPSLEEPMS_LASTRUN=${now_ms}
+
+	# calculate the next run
+	LOOPSLEEPMS_NEXTRUN=$(((now_ms - (now_ms % (t * 1000))) + (t * 1000)))
+
+	# calculate ms to sleep
+	mstosleep=$((LOOPSLEEPMS_NEXTRUN - now_ms + current_time_ms_accuracy))
+	# echo "# mstosleep is $mstosleep ms"
+
+	# if we are too slow, sleep some time
+	test ${mstosleep} -lt 200 && mstosleep=200
+
+	s=$((mstosleep / 1000))
+	m=$((mstosleep - (s * 1000)))
+	[ "${m}" -lt 100 ] && m="0${m}"
+	[ "${m}" -lt 10 ] && m="0${m}"
+
+	test $tellwork -eq 1 && echo >&2 " >>> PERFORMANCE >>> WORK TOOK ${LOOPSLEEPMS_LASTWORK} ms ( $((LOOPSLEEPMS_LASTWORK * 100 / 1000)).$((LOOPSLEEPMS_LASTWORK % 10))% cpu ) >>> SLEEPING ${mstosleep} ms"
+
+	# echo "# sleeping ${s}.${m}"
+	# echo
+	${mysleep} ${s}.${m}
+
+	# keep the values we need
+	# for our next run
+	LOOPSLEEPMS_LASTSLEEP=$mstosleep
 }
 
 # test it
diff --git a/collectors/charts.d.plugin/mem_apps/README.md b/collectors/charts.d.plugin/mem_apps/README.md
index cd8adf0a2..a9513e9fe 100644
--- a/collectors/charts.d.plugin/mem_apps/README.md
+++ b/collectors/charts.d.plugin/mem_apps/README.md
@@ -1,2 +1,6 @@
+# mem_apps
+
 > THIS MODULE IS OBSOLETE.
-> USE APPS.PLUGIN.
+> USE [APPS.PLUGIN](../../apps.plugin).
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fmem_apps%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/mem_apps/mem_apps.chart.sh b/collectors/charts.d.plugin/mem_apps/mem_apps.chart.sh
index a13dc71f1..b9b84a467 100644
--- a/collectors/charts.d.plugin/mem_apps/mem_apps.chart.sh
+++ b/collectors/charts.d.plugin/mem_apps/mem_apps.chart.sh
@@ -20,8 +20,7 @@ mem_apps_check() {
 	#  - 0 to enable the chart
 	#  - 1 to disable the chart
 
-	if [ -z "$mem_apps_apps" ]
-	then
+	if [ -z "$mem_apps_apps" ]; then
 		error "manual configuration required: please set mem_apps_apps='command1 command2 ...' in $confd/mem_apps_apps.conf"
 		return 1
 	fi
@@ -35,8 +34,7 @@ mem_apps_create() {
 	echo "CHART chartsd_apps.mem '' 'Apps Memory' MB apps apps.mem stacked 20000 $mem_apps_update_every"
 
 	local x=
-	for x in $mem_apps_apps
-	do
+	for x in $mem_apps_apps; do
 		echo "DIMENSION $x $x absolute 1 1024"
 
 		# this string is needed later in the update() function
@@ -52,9 +50,10 @@ mem_apps_update() {
 	# remember: KEEP IT SIMPLE AND SHORT
 
 	echo "BEGIN chartsd_apps.mem"
-	ps -o comm,rss -C "$mem_apps_apps" |\
-		grep -v "^COMMAND" |\
-		(	sed -e "s/ \+/ /g" -e "s/ /+=/g";
+	ps -o comm,rss -C "$mem_apps_apps" |
+		grep -v "^COMMAND" |
+		(
+			sed -e "s/ \+/ /g" -e "s/ /+=/g"
 			echo "$mem_apps_bc_finalze"
 		) | bc
 	echo "END"
diff --git a/collectors/charts.d.plugin/mysql/README.md b/collectors/charts.d.plugin/mysql/README.md
index 6765b53ab..e52449a4f 100644
--- a/collectors/charts.d.plugin/mysql/README.md
+++ b/collectors/charts.d.plugin/mysql/README.md
@@ -1,8 +1,8 @@
-> THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
-
 # mysql
 
+> THIS MODULE IS OBSOLETE.
+> USE [THE PYTHON ONE](../../python.d.plugin/mysql) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
 The plugin will monitor one or more mysql servers
 
 It will produce the following charts:
@@ -79,3 +79,5 @@ If no configuration is given, the plugin will attempt to connect to mysql server
 
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fmysql%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/mysql/mysql.chart.sh b/collectors/charts.d.plugin/mysql/mysql.chart.sh
index 37e8e2a7c..e1207dc9a 100644
--- a/collectors/charts.d.plugin/mysql/mysql.chart.sh
+++ b/collectors/charts.d.plugin/mysql/mysql.chart.sh
@@ -27,19 +27,19 @@ mysql_get() {
 	#arr=($(run "${@}" -e "SHOW GLOBAL STATUS WHERE value REGEXP '^[0-9]';" | egrep "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)" ))
 	#arr=($(run "${@}" -N -e "SHOW GLOBAL STATUS;" | egrep "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)[^ ]+\s[0-9]" ))
 	# shellcheck disable=SC2207
-	arr=($(run "${@}" -N -e "SHOW GLOBAL STATUS;" | grep -E "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)[^[:space:]]+[[:space:]]+[0-9]+" ))
+	arr=($(run "${@}" -N -e "SHOW GLOBAL STATUS;" | grep -E "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)[^[:space:]]+[[:space:]]+[0-9]+"))
 	IFS="${oIFS}"
 
 	[ "${#arr[@]}" -lt 3 ] && return 1
 	local end=${#arr[@]}
-	for ((i=2;i<end;i+=2)); do
-		mysql_data["${arr[$i]}"]=${arr[$i+1]}
+	for ((i = 2; i < end; i += 2)); do
+		mysql_data["${arr[$i]}"]=${arr[i + 1]}
 	done
 
 	[ -z "${mysql_data[Connections]}" ] && return 1
 
 	mysql_data[Thread_cache_misses]=0
-	[ $(( mysql_data[Connections] + 1 - 1 )) -gt 0 ] && mysql_data[Thread_cache_misses]=$(( mysql_data[Threads_created] * 10000 / mysql_data[Connections] ))
+	[ $((mysql_data[Connections] + 1 - 1)) -gt 0 ] && mysql_data[Thread_cache_misses]=$((mysql_data[Threads_created] * 10000 / mysql_data[Connections]))
 
 	return 0
 }
@@ -51,23 +51,20 @@ mysql_check() {
 
 	local x m mysql_cmd tryroot=0 unconfigured=0
 
-	if [ "${1}" = "tryroot" ]
-		then
+	if [ "${1}" = "tryroot" ]; then
 		tryroot=1
 		shift
 	fi
 
-        # shellcheck disable=SC2230
+	# shellcheck disable=SC2230
 	[ -z "${mysql_cmd}" ] && mysql_cmd="$(which mysql 2>/dev/null || command -v mysql 2>/dev/null)"
 
-	if [ ${#mysql_opts[@]} -eq 0 ]
-		then
+	if [ ${#mysql_opts[@]} -eq 0 ]; then
 		unconfigured=1
 
 		mysql_cmds[local]="$mysql_cmd"
 
-		if [ $tryroot -eq 1 ]
-			then
+		if [ $tryroot -eq 1 ]; then
 			# the user has not configured us for mysql access
 			# if the root user is passwordless in mysql, we can
 			# attempt to connect to mysql as root
@@ -78,19 +75,16 @@ mysql_check() {
 	fi
 
 	# check once if the url works
-	for m in "${!mysql_opts[@]}"
-	do
+	for m in "${!mysql_opts[@]}"; do
 		[ -z "${mysql_cmds[$m]}" ] && mysql_cmds[$m]="$mysql_cmd"
-		if [ -z "${mysql_cmds[$m]}" ]
-			then
+		if [ -z "${mysql_cmds[$m]}" ]; then
 			# shellcheck disable=SC2154
 			error "cannot get mysql command for '${m}'. Please set mysql_cmds[$m]='/path/to/mysql', in $confd/mysql.conf"
 		fi
 
 		mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
 		# shellcheck disable=SC2181
-		if [ ! $? -eq 0 ]
-		then
+		if [ ! $? -eq 0 ]; then
 			error "cannot get global status for '$m'. Please set mysql_opts[$m]='options' to whatever needed to get connected to the mysql server, in $confd/mysql.conf"
 			unset "mysql_cmds[$m]"
 			unset "mysql_opts[$m]"
@@ -98,13 +92,11 @@ mysql_check() {
 			continue
 		fi
 
-		mysql_ids[$m]="$( fixid "$m" )"
+		mysql_ids[$m]="$(fixid "$m")"
 	done
 
-	if [ ${#mysql_opts[@]} -eq 0 ]
-		then
-		if [ ${unconfigured} -eq 1 ] && [ ${tryroot} -eq 0 ]
-			then
+	if [ ${#mysql_opts[@]} -eq 0 ]; then
+		if [ ${unconfigured} -eq 1 ] && [ ${tryroot} -eq 0 ]; then
 			mysql_check tryroot "${@}"
 			return $?
 		else
@@ -120,8 +112,7 @@ mysql_create() {
 	local x
 
 	# create the charts
-	for x in "${mysql_ids[@]}"
-	do
+	for x in "${mysql_ids[@]}"; do
 		cat <<EOF
 CHART mysql_$x.net '' "mysql Bandwidth" "kilobits/s" bandwidth mysql.net area $((mysql_priority + 1)) $mysql_update_every
 DIMENSION Bytes_received in incremental 8 1024
@@ -230,7 +221,7 @@ DIMENSION Innodb_buffer_pool_pages_flushed flushed incremental -1 1
 DIMENSION Innodb_buffer_pool_pages_misc misc absolute -1 1
 DIMENSION Innodb_buffer_pool_pages_total total absolute 1 1
 
-CHART mysql_$x.innodb_buffer_pool_bytes '' "mysql InnoDB Buffer Pool Bytes" "MB" innodb mysql.innodb_buffer_pool_bytes area $((mysql_priority + 21)) $mysql_update_every
+CHART mysql_$x.innodb_buffer_pool_bytes '' "mysql InnoDB Buffer Pool Bytes" "MiB" innodb mysql.innodb_buffer_pool_bytes area $((mysql_priority + 21)) $mysql_update_every
 DIMENSION Innodb_buffer_pool_bytes_data data absolute 1 $((1024 * 1024))
 DIMENSION Innodb_buffer_pool_bytes_dirty dirty absolute -1 $((1024 * 1024))
 
@@ -256,7 +247,7 @@ DIMENSION Qcache_not_cached 'not cached' incremental -1 1
 CHART mysql_$x.qcache '' "mysql QCache Queries in Cache" "queries" qcache mysql.qcache line $((mysql_priority + 26)) $mysql_update_every
 DIMENSION Qcache_queries_in_cache queries absolute 1 1
 
-CHART mysql_$x.qcache_freemem '' "mysql QCache Free Memory" "MB" qcache mysql.qcache_freemem area $((mysql_priority + 27)) $mysql_update_every
+CHART mysql_$x.qcache_freemem '' "mysql QCache Free Memory" "MiB" qcache mysql.qcache_freemem area $((mysql_priority + 27)) $mysql_update_every
 DIMENSION Qcache_free_memory free absolute 1 $((1024 * 1024))
 
 CHART mysql_$x.qcache_memblocks '' "mysql QCache Memory Blocks" "blocks" qcache mysql.qcache_memblocks line $((mysql_priority + 28)) $mysql_update_every
@@ -283,18 +274,16 @@ CHART mysql_$x.files_rate '' "mysql Opened Files Rate" "files/s" files mysql.fil
 DIMENSION Opened_files files incremental 1 1
 EOF
 
-	if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]
-		then
-		cat <<EOF
+		if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]; then
+			cat <<EOF
 CHART mysql_$x.binlog_stmt_cache '' "mysql Binlog Statement Cache" "statements/s" binlog mysql.binlog_stmt_cache line $((mysql_priority + 50)) $mysql_update_every
 DIMENSION Binlog_stmt_cache_disk_use disk incremental 1 1
 DIMENSION Binlog_stmt_cache_use all incremental 1 1
 EOF
-	fi
+		fi
 
-	if [ ! -z "${mysql_data[Connection_errors_accept]}" ]
-		then
-		cat <<EOF
+		if [ ! -z "${mysql_data[Connection_errors_accept]}" ]; then
+			cat <<EOF
 CHART mysql_$x.connection_errors '' "mysql Connection Errors" "connections/s" connections mysql.connection_errors line $((mysql_priority + 51)) $mysql_update_every
 DIMENSION Connection_errors_accept accept incremental 1 1
 DIMENSION Connection_errors_internal internal incremental 1 1
@@ -303,13 +292,12 @@ DIMENSION Connection_errors_peer_addr peer_addr incremental 1 1
 DIMENSION Connection_errors_select select incremental 1 1
 DIMENSION Connection_errors_tcpwrap tcpwrap incremental 1 1
 EOF
-	fi
+		fi
 
 	done
 	return 0
 }
 
-
 mysql_update() {
 	# the first argument to this function is the microseconds since last update
 	# pass this parameter to the BEGIN statement (see bellow).
@@ -319,14 +307,12 @@ mysql_update() {
 	# remember: KEEP IT SIMPLE AND SHORT
 
 	local m x
-	for m in "${!mysql_ids[@]}"
-	do
+	for m in "${!mysql_ids[@]}"; do
 		x="${mysql_ids[$m]}"
 		mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
 
 		# shellcheck disable=SC2181
-		if [ $? -ne 0 ]
-			then
+		if [ $? -ne 0 ]; then
 			unset "mysql_ids[$m]"
 			unset "mysql_opts[$m]"
 			unset "mysql_cmds[$m]"
@@ -497,8 +483,7 @@ SET Opened_files = ${mysql_data[Opened_files]}
 END
 VALUESEOF
 
-		if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]
-			then
+		if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]; then
 			cat <<VALUESEOF
 BEGIN mysql_$x.binlog_stmt_cache $1
 SET Binlog_stmt_cache_disk_use = ${mysql_data[Binlog_stmt_cache_disk_use]}
@@ -507,8 +492,7 @@ END
 VALUESEOF
 		fi
 
-		if [ ! -z "${mysql_data[Connection_errors_accept]}" ]
-			then
+		if [ ! -z "${mysql_data[Connection_errors_accept]}" ]; then
 			cat <<VALUESEOF
 BEGIN mysql_$x.connection_errors $1
 SET Connection_errors_accept = ${mysql_data[Connection_errors_accept]}
@@ -525,4 +509,3 @@ VALUESEOF
 	[ ${#mysql_ids[@]} -eq 0 ] && error "no mysql servers left active." && return 1
 	return 0
 }
-
diff --git a/collectors/charts.d.plugin/nginx/README.md b/collectors/charts.d.plugin/nginx/README.md
index d82951aac..42a4f812b 100644
--- a/collectors/charts.d.plugin/nginx/README.md
+++ b/collectors/charts.d.plugin/nginx/README.md
@@ -1,2 +1,6 @@
+# nginx
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/nginx) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fnginx%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/nginx/nginx.chart.sh b/collectors/charts.d.plugin/nginx/nginx.chart.sh
index 14dda0832..812de2cbb 100644
--- a/collectors/charts.d.plugin/nginx/nginx.chart.sh
+++ b/collectors/charts.d.plugin/nginx/nginx.chart.sh
@@ -32,16 +32,15 @@ nginx_get() {
 	# shellcheck disable=SC2181
 	if [ $? -ne 0 ] || [ "${#nginx_response[@]}" -eq 0 ]; then return 1; fi
 
-	if [ "${nginx_response[0]}" != "Active" ] ||\
-	   [ "${nginx_response[1]}" != "connections:" ] ||\
-	   [ "${nginx_response[3]}" != "server" ] ||\
-	   [ "${nginx_response[4]}" != "accepts" ] ||\
-	   [ "${nginx_response[5]}" != "handled" ] ||\
-	   [ "${nginx_response[6]}" != "requests" ] ||\
-	   [ "${nginx_response[10]}" != "Reading:" ] ||\
-	   [ "${nginx_response[12]}" != "Writing:" ] ||\
-	   [ "${nginx_response[14]}" != "Waiting:" ]
-	then
+	if [ "${nginx_response[0]}" != "Active" ] ||
+		[ "${nginx_response[1]}" != "connections:" ] ||
+		[ "${nginx_response[3]}" != "server" ] ||
+		[ "${nginx_response[4]}" != "accepts" ] ||
+		[ "${nginx_response[5]}" != "handled" ] ||
+		[ "${nginx_response[6]}" != "requests" ] ||
+		[ "${nginx_response[10]}" != "Reading:" ] ||
+		[ "${nginx_response[12]}" != "Writing:" ] ||
+		[ "${nginx_response[14]}" != "Waiting:" ]; then
 		error "Invalid response from nginx server: ${nginx_response[*]}"
 		return 1
 	fi
@@ -54,14 +53,13 @@ nginx_get() {
 	nginx_writing="${nginx_response[13]}"
 	nginx_waiting="${nginx_response[15]}"
 
-	if [ -z "${nginx_active_connections}" ] ||\
-	   [ -z "${nginx_accepts}" ] ||\
-	   [ -z "${nginx_handled}" ] ||\
-	   [ -z "${nginx_requests}" ] ||\
-	   [ -z "${nginx_reading}" ] ||\
-	   [ -z "${nginx_writing}" ] ||\
-	   [ -z "${nginx_waiting}" ]
-	then
+	if [ -z "${nginx_active_connections}" ] ||
+		[ -z "${nginx_accepts}" ] ||
+		[ -z "${nginx_handled}" ] ||
+		[ -z "${nginx_requests}" ] ||
+		[ -z "${nginx_reading}" ] ||
+		[ -z "${nginx_writing}" ] ||
+		[ -z "${nginx_waiting}" ]; then
 		error "empty values got from nginx server: ${nginx_response[*]}"
 		return 1
 	fi
@@ -74,8 +72,7 @@ nginx_check() {
 
 	nginx_get
 	# shellcheck disable=2181
-	if [ $? -ne 0 ]
-	then
+	if [ $? -ne 0 ]; then
 		# shellcheck disable=SC2154
 		error "cannot find stub_status on URL '${nginx_url}'. Please set nginx_url='http://nginx.server/stub_status' in $confd/nginx.conf"
 		return 1
diff --git a/collectors/charts.d.plugin/nut/README.md b/collectors/charts.d.plugin/nut/README.md
index 71906f55a..3e1699363 100644
--- a/collectors/charts.d.plugin/nut/README.md
+++ b/collectors/charts.d.plugin/nut/README.md
@@ -57,3 +57,5 @@ nut_update_every=2
 ```
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fnut%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/nut/nut.chart.sh b/collectors/charts.d.plugin/nut/nut.chart.sh
index 7e252f325..933d3561d 100644
--- a/collectors/charts.d.plugin/nut/nut.chart.sh
+++ b/collectors/charts.d.plugin/nut/nut.chart.sh
@@ -34,8 +34,7 @@ nut_get_all() {
 nut_get() {
 	run -t $nut_timeout upsc "$1"
 
-	if [ "${nut_clients_chart}" -eq "1" ]
-		then
+	if [ "${nut_clients_chart}" -eq "1" ]; then
 		printf "ups.connected_clients: "
 		run -t $nut_timeout upsc -c "$1" | wc -l
 	fi
@@ -51,27 +50,23 @@ nut_check() {
 
 	require_cmd upsc || return 1
 
-	[ -z "$nut_ups" ] && nut_ups="$( nut_get_all )"
+	[ -z "$nut_ups" ] && nut_ups="$(nut_get_all)"
 
-	for x in $nut_ups
-	do
+	for x in $nut_ups; do
 		nut_get "$x" >/dev/null
 		# shellcheck disable=SC2181
-		if [ $? -eq 0 ]
-		then
-			if [ ! -z "${nut_names[${x}]}" ]
-			then
-				nut_ids[$x]="$( fixid "${nut_names[${x}]}" )"
+		if [ $? -eq 0 ]; then
+			if [ ! -z "${nut_names[${x}]}" ]; then
+				nut_ids[$x]="$(fixid "${nut_names[${x}]}")"
 			else
-				nut_ids[$x]="$( fixid "$x" )"
+				nut_ids[$x]="$(fixid "$x")"
 			fi
 			continue
 		fi
 		error "cannot get information for NUT UPS '$x'."
 	done
 
-	if [ ${#nut_ids[@]} -eq 0 ]
-	then
+	if [ ${#nut_ids[@]} -eq 0 ]; then
 		# shellcheck disable=SC2154
 		error "Cannot find UPSes - please set nut_ups='ups_name' in $confd/nut.conf"
 		return 1
@@ -84,8 +79,7 @@ nut_create() {
 	# create the charts
 	local x
 
-	for x in "${nut_ids[@]}"
-	do
+	for x in "${nut_ids[@]}"; do
 		cat <<EOF
 CHART nut_$x.charge '' "UPS Charge" "percentage" ups nut.charge area $((nut_priority + 1)) $nut_update_every
 DIMENSION battery_charge charge absolute 1 100
@@ -121,20 +115,18 @@ CHART nut_$x.temp '' "UPS Temperature" "temperature" ups nut.temperature line $(
 DIMENSION temp temp absolute 1 100
 EOF
 
-	if [ "${nut_clients_chart}" = "1" ]
-		then
-		cat <<EOF2
+		if [ "${nut_clients_chart}" = "1" ]; then
+			cat <<EOF2
 CHART nut_$x.clients '' "UPS Connected Clients" "clients" ups nut.clients area $((nut_priority + 9)) $nut_update_every
 DIMENSION clients '' absolute 1 1
 EOF2
-	fi
+		fi
 
 	done
 
 	return 0
 }
 
-
 nut_update() {
 	# the first argument to this function is the microseconds since last update
 	# pass this parameter to the BEGIN statement (see bellow).
@@ -144,8 +136,7 @@ nut_update() {
 	# remember: KEEP IT SIMPLE AND SHORT
 
 	local i x
-	for i in "${!nut_ids[@]}"
-	do
+	for i in "${!nut_ids[@]}"; do
 		x="${nut_ids[$i]}"
 		nut_get "$i" | awk "
 BEGIN {
diff --git a/collectors/charts.d.plugin/opensips/README.md b/collectors/charts.d.plugin/opensips/README.md
index e69de29bb..cb056da86 100644
--- a/collectors/charts.d.plugin/opensips/README.md
+++ b/collectors/charts.d.plugin/opensips/README.md
@@ -0,0 +1,7 @@
+# OpenSIPS
+
+*Under construction*
+
+Collects OpenSIPS metrics
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fopensips%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/opensips/opensips.chart.sh b/collectors/charts.d.plugin/opensips/opensips.chart.sh
index c227bd4f2..b42462d6d 100644
--- a/collectors/charts.d.plugin/opensips/opensips.chart.sh
+++ b/collectors/charts.d.plugin/opensips/opensips.chart.sh
@@ -14,8 +14,8 @@ opensips_timeout=2
 opensips_priority=80000
 
 opensips_get_stats() {
-	run -t $opensips_timeout "$opensips_cmd" $opensips_opts |\
-		grep "^\(core\|dialog\|net\|registrar\|shmem\|siptrace\|sl\|tm\|uri\|usrloc\):[a-zA-Z0-9_-]\+[[:space:]]*[=:]\+[[:space:]]*[0-9]\+[[:space:]]*$" |\
+	run -t $opensips_timeout "$opensips_cmd" $opensips_opts |
+		grep "^\(core\|dialog\|net\|registrar\|shmem\|siptrace\|sl\|tm\|uri\|usrloc\):[a-zA-Z0-9_-]\+[[:space:]]*[=:]\+[[:space:]]*[0-9]\+[[:space:]]*$" |
 		sed \
 			-e "s|[[:space:]]*[=:]\+[[:space:]]*\([0-9]\+\)[[:space:]]*$|=\1|g" \
 			-e "s|[[:space:]:-]\+|_|g" \
@@ -29,8 +29,7 @@ opensips_get_stats() {
 opensips_check() {
 	# if the user did not provide an opensips_cmd
 	# try to find it in the system
-	if [ -z "$opensips_cmd" ]
-		then
+	if [ -z "$opensips_cmd" ]; then
 		require_cmd opensipsctl || return 1
 	fi
 
@@ -38,8 +37,7 @@ opensips_check() {
 	local x
 	x="$(opensips_get_stats | grep "^opensips_core_")"
 	# shellcheck disable=SC2181
-	if [ ! $? -eq 0 ] || [ -z "$x" ]
-	then
+	if [ ! $? -eq 0 ] || [ -z "$x" ]; then
 		error "cannot get global status. Please set opensips_opts='options' whatever needed to get connected to opensips server, in $confd/opensips.conf"
 		return 1
 	fi
diff --git a/collectors/charts.d.plugin/phpfpm/README.md b/collectors/charts.d.plugin/phpfpm/README.md
index d82951aac..36462ba98 100644
--- a/collectors/charts.d.plugin/phpfpm/README.md
+++ b/collectors/charts.d.plugin/phpfpm/README.md
@@ -1,2 +1,6 @@
+# phpfm
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/phpfpm) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fphpfpm%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh b/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh
index 1af7910bc..b1edb2373 100644
--- a/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh
+++ b/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh
@@ -44,17 +44,7 @@ phpfpm_get() {
 		return 1
 	fi
 
-	if [[ "${phpfpm_response[0]}" != "pool:" \
-		|| "${phpfpm_response[2]}" != "process" \
-		|| "${phpfpm_response[5]}" != "start" \
-		|| "${phpfpm_response[12]}" != "accepted" \
-		|| "${phpfpm_response[15]}" != "listen" \
-		|| "${phpfpm_response[16]}" != "queue:" \
-		|| "${phpfpm_response[26]}" != "idle" \
-		|| "${phpfpm_response[29]}" != "active" \
-		|| "${phpfpm_response[32]}" != "total" \
-	]]
-		then
+	if [[ ${phpfpm_response[0]} != "pool:" || ${phpfpm_response[2]} != "process" || ${phpfpm_response[5]} != "start" || ${phpfpm_response[12]} != "accepted" || ${phpfpm_response[15]} != "listen" || ${phpfpm_response[16]} != "queue:" || ${phpfpm_response[26]} != "idle" || ${phpfpm_response[29]} != "active" || ${phpfpm_response[32]} != "total" ]]; then
 		error "invalid response from phpfpm status server: ${phpfpm_response[*]}"
 		return 1
 	fi
@@ -71,27 +61,13 @@ phpfpm_get() {
 	phpfpm_total_processes="${phpfpm_response[34]}"
 	phpfpm_max_active_processes="${phpfpm_response[38]}"
 	phpfpm_max_children_reached="${phpfpm_response[42]}"
-	if [ "${phpfpm_response[43]}" == "slow" ]
-		then
-	  	phpfpm_slow_requests="${phpfpm_response[45]}"
+	if [ "${phpfpm_response[43]}" == "slow" ]; then
+		phpfpm_slow_requests="${phpfpm_response[45]}"
 	else
-	  	phpfpm_slow_requests="-1"
+		phpfpm_slow_requests="-1"
 	fi
 
-	if [[ -z "${phpfpm_pool}" \
-		|| -z "${phpfpm_start_time}" \
-		|| -z "${phpfpm_start_since}" \
-		|| -z "${phpfpm_accepted_conn}" \
-		|| -z "${phpfpm_listen_queue}" \
-		|| -z "${phpfpm_max_listen_queue}" \
-		|| -z "${phpfpm_listen_queue_len}" \
-		|| -z "${phpfpm_idle_processes}" \
-		|| -z "${phpfpm_active_processes}" \
-		|| -z "${phpfpm_total_processes}" \
-		|| -z "${phpfpm_max_active_processes}" \
-		|| -z "${phpfpm_max_children_reached}" \
-	]]
-		then
+	if [[ -z ${phpfpm_pool} || -z ${phpfpm_start_time} || -z ${phpfpm_start_since} || -z ${phpfpm_accepted_conn} || -z ${phpfpm_listen_queue} || -z ${phpfpm_max_listen_queue} || -z ${phpfpm_listen_queue_len} || -z ${phpfpm_idle_processes} || -z ${phpfpm_active_processes} || -z ${phpfpm_total_processes} || -z ${phpfpm_max_active_processes} || -z ${phpfpm_max_children_reached} ]]; then
 		error "empty values got from phpfpm status server: ${phpfpm_response[*]}"
 		return 1
 	fi
@@ -106,8 +82,7 @@ phpfpm_check() {
 	fi
 
 	local m
-	for m in "${!phpfpm_urls[@]}"
-	do
+	for m in "${!phpfpm_urls[@]}"; do
 		phpfpm_get "${phpfpm_curl_opts[$m]}" "${phpfpm_urls[$m]}"
 		# shellcheck disable=SC2181
 		if [ $? -ne 0 ]; then
@@ -133,8 +108,7 @@ phpfpm_check() {
 # _create is called once, to create the charts
 phpfpm_create() {
 	local m
-	for m in "${!phpfpm_urls[@]}"
-	do
+	for m in "${!phpfpm_urls[@]}"; do
 		cat <<EOF
 CHART phpfpm_$m.connections '' "PHP-FPM Active Connections" "connections" phpfpm phpfpm.connections line $((phpfpm_priority + 1)) $phpfpm_update_every
 DIMENSION active '' absolute 1 1
@@ -147,8 +121,7 @@ DIMENSION requests '' incremental 1 1
 CHART phpfpm_$m.performance '' "PHP-FPM Performance" "status" phpfpm phpfpm.performance line $((phpfpm_priority + 3)) $phpfpm_update_every
 DIMENSION reached 'max children reached' absolute 1 1
 EOF
-		if [ $((phpfpm_slow_requests)) -ne -1 ]
-			then
+		if [ $((phpfpm_slow_requests)) -ne -1 ]; then
 			echo "DIMENSION slow 'slow requests' absolute 1 1"
 		fi
 	done
@@ -166,8 +139,7 @@ phpfpm_update() {
 	# remember: KEEP IT SIMPLE AND SHORT
 
 	local m
-	for m in "${!phpfpm_urls[@]}"
-	do
+	for m in "${!phpfpm_urls[@]}"; do
 		phpfpm_get "${phpfpm_curl_opts[$m]}" "${phpfpm_urls[$m]}"
 		# shellcheck disable=SC2181
 		if [ $? -ne 0 ]; then
@@ -187,8 +159,7 @@ END
 BEGIN phpfpm_$m.performance $1
 SET reached = $((phpfpm_max_children_reached))
 EOF
-		if [ $((phpfpm_slow_requests)) -ne -1 ]
-			then
+		if [ $((phpfpm_slow_requests)) -ne -1 ]; then
 			echo "SET slow = $((phpfpm_slow_requests))"
 		fi
 		echo "END"
diff --git a/collectors/charts.d.plugin/postfix/README.md b/collectors/charts.d.plugin/postfix/README.md
index 5fc265d56..e0dc63304 100644
--- a/collectors/charts.d.plugin/postfix/README.md
+++ b/collectors/charts.d.plugin/postfix/README.md
@@ -1,8 +1,8 @@
-> THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
-
 # postfix
 
+> THIS MODULE IS OBSOLETE.
+> USE [THE PYTHON ONE](../../python.d.plugin/postfix) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
 The plugin will collect the postfix queue size.
 
 It will create two charts:
@@ -24,3 +24,5 @@ postfix_update_every=15
 ```
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fpostfix%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/postfix/postfix.chart.sh b/collectors/charts.d.plugin/postfix/postfix.chart.sh
index 8cb938ce1..ff59db9fe 100644
--- a/collectors/charts.d.plugin/postfix/postfix.chart.sh
+++ b/collectors/charts.d.plugin/postfix/postfix.chart.sh
@@ -22,14 +22,12 @@ postfix_check() {
 	#  - 1 to disable the chart
 
 	# try to find the postqueue executable
-	if [ -z "$postfix_postqueue" ] || [ ! -x "$postfix_postqueue" ]
-	then
+	if [ -z "$postfix_postqueue" ] || [ ! -x "$postfix_postqueue" ]; then
 		# shellcheck disable=SC2230
 		postfix_postqueue="$(which postqueue 2>/dev/null || command -v postqueue 2>/dev/null)"
 	fi
 
-	if [ -z "$postfix_postqueue" ] || [ ! -x  "$postfix_postqueue" ]
-	then
+	if [ -z "$postfix_postqueue" ] || [ ! -x "$postfix_postqueue" ]; then
 		# shellcheck disable=SC2154
 		error "cannot find postqueue. Please set 'postfix_postqueue=/path/to/postqueue' in $confd/postfix.conf"
 		return 1
@@ -39,7 +37,7 @@ postfix_check() {
 }
 
 postfix_create() {
-cat <<EOF
+	cat <<EOF
 CHART postfix_local.qemails '' "Postfix Queue Emails" "emails" queue postfix.queued.emails line $((postfix_priority + 1)) $postfix_update_every
 DIMENSION emails '' absolute 1 1
 CHART postfix_local.qsize '' "Postfix Queue Emails Size" "emails size in KB" queue postfix.queued.size area $((postfix_priority + 2)) $postfix_update_every
@@ -70,9 +68,9 @@ postfix_update() {
 	postfix_q_emails=0
 	postfix_q_size=0
 
-	eval "$(run "$postfix_postqueue" -p |\
-		grep "^--" |\
-		sed -e "s/-- \([0-9]\+\) Kbytes in \([0-9]\+\) Requests.$/local postfix_q_size=\1\nlocal postfix_q_emails=\2/g" |\
+	eval "$(run "$postfix_postqueue" -p |
+		grep "^--" |
+		sed -e "s/-- \([0-9]\+\) Kbytes in \([0-9]\+\) Requests.$/local postfix_q_size=\1\nlocal postfix_q_emails=\2/g" |
 		grep -E "^local postfix_q_(emails|size)=[0-9]+$")"
 
 	# write the result of the work.
diff --git a/collectors/charts.d.plugin/sensors/README.md b/collectors/charts.d.plugin/sensors/README.md
index ddc3650d6..4f3e46d67 100644
--- a/collectors/charts.d.plugin/sensors/README.md
+++ b/collectors/charts.d.plugin/sensors/README.md
@@ -1,9 +1,10 @@
+# sensors
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/sensors) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
 
 > Unlike the python one, this module can collect temperature on RPi.
 
-# sensors
 
 The plugin will provide charts for all configured system sensors
 
@@ -50,3 +51,5 @@ sensors_excluded=()
 ```
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fsensors%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/sensors/sensors.chart.sh b/collectors/charts.d.plugin/sensors/sensors.chart.sh
index 54368f1e0..b92187772 100644
--- a/collectors/charts.d.plugin/sensors/sensors.chart.sh
+++ b/collectors/charts.d.plugin/sensors/sensors.chart.sh
@@ -38,8 +38,7 @@ sensors_find_all_files() {
 
 sensors_find_all_dirs() {
 	# shellcheck disable=SC2162
-	sensors_find_all_files "$1" | while read
-	do
+	sensors_find_all_files "$1" | while read; do
 		dirname "$REPLY"
 	done | sort -u
 }
@@ -51,7 +50,7 @@ sensors_check() {
 	#  - 0 to enable the chart
 	#  - 1 to disable the chart
 
-	[ -z "$( sensors_find_all_files "$sensors_sys_dir" )" ] && error "no sensors found in '$sensors_sys_dir'." && return 1
+	[ -z "$(sensors_find_all_files "$sensors_sys_dir")" ] && error "no sensors found in '$sensors_sys_dir'." && return 1
 	return 0
 }
 
@@ -60,15 +59,14 @@ sensors_check_files() {
 	# also remove not needed sensors
 
 	local f v excluded
-	for f in "$@"
-	do
+	for f in "$@"; do
 		[ ! -f "$f" ] && continue
 		for ex in "${sensors_excluded[@]}"; do
 			[[ $f =~ .*$ex$ ]] && excluded='1' && break
 		done
 
-		[ "$excluded" != "1" ] && v="$( cat "$f" )" || v=0
-		v=$(( v + 1 - 1 ))
+		[ "$excluded" != "1" ] && v="$(cat "$f")" || v=0
+		v=$((v + 1 - 1))
 		[ $v -ne 0 ] && echo "$f" && continue
 		excluded=
 
@@ -81,15 +79,14 @@ sensors_check_temp_type() {
 	# disabled sensors have the value 0
 
 	local f t v
-	for f in "$@"
-	do
+	for f in "$@"; do
 		# shellcheck disable=SC2001
-		t=$( echo "$f" | sed "s|_input$|_type|g" )
+		t=$(echo "$f" | sed "s|_input$|_type|g")
 		[ "$f" = "$t" ] && echo "$f" && continue
 		[ ! -f "$t" ] && echo "$f" && continue
 
-		v="$( cat "$t" )"
-		v=$(( v + 1 - 1 ))
+		v="$(cat "$t")"
+		v=$((v + 1 - 1))
 		[ $v -ne 0 ] && echo "$f" && continue
 
 		error "$f is disabled"
@@ -105,120 +102,119 @@ sensors_create() {
 	# - the highest speed we can achieve -
 	[ $sensors_source_update -eq 1 ] && echo >"$TMP_DIR/sensors.sh" "sensors_update() {"
 
-	for path in $( sensors_find_all_dirs "$sensors_sys_dir" | sort -u )
-	do
-		dir=$( basename "$path" )
+	for path in $(sensors_find_all_dirs "$sensors_sys_dir" | sort -u); do
+		dir=$(basename "$path")
 		device=
 		subsystem=
 		id=
 		type=
 		name=
 
-		[ -h "$path/device" ] && device=$( readlink -f "$path/device" )
-		[ ! -z "$device" ] && device=$( basename "$device" )
+		[ -h "$path/device" ] && device=$(readlink -f "$path/device")
+		[ ! -z "$device" ] && device=$(basename "$device")
 		[ -z "$device" ] && device="$dir"
 
-		[ -h "$path/subsystem" ] && subsystem=$( readlink -f "$path/subsystem" )
-		[ ! -z "$subsystem" ] && subsystem=$( basename "$subsystem" )
+		[ -h "$path/subsystem" ] && subsystem=$(readlink -f "$path/subsystem")
+		[ ! -z "$subsystem" ] && subsystem=$(basename "$subsystem")
 		[ -z "$subsystem" ] && subsystem="$dir"
 
-		[ -f "$path/name" ] && name=$( cat "$path/name" )
+		[ -f "$path/name" ] && name=$(cat "$path/name")
 		[ -z "$name" ] && name="$dir"
 
-		[ -f "$path/type" ] && type=$( cat "$path/type" )
+		[ -f "$path/type" ] && type=$(cat "$path/type")
 		[ -z "$type" ] && type="$dir"
 
-		id="$( fixid "$device.$subsystem.$dir" )"
+		id="$(fixid "$device.$subsystem.$dir")"
 
 		debug "path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
 
-		for mode in temperature voltage fans power current energy humidity
-		do
+		for mode in temperature voltage fans power current energy humidity; do
 			files=
 			multiplier=1
 			divisor=1
 			algorithm="absolute"
 
 			case $mode in
-				temperature)
-					files="$( ls "$path"/temp*_input 2>/dev/null; ls "$path/temp" 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					files="$( sensors_check_temp_type "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.temp_$id '' '$name Temperature' 'Celsius' 'temperature' 'sensors.temp' line $((sensors_priority + 1)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.temp_$id \$1\""
-					divisor=1000
-					;;
-
-				voltage)
-					files="$( ls "$path"/in*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' 'voltage' 'sensors.volt' line $((sensors_priority + 2)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.volt_$id \$1\""
-					divisor=1000
-					;;
-
-				current)
-					files="$( ls "$path"/curr*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' 'current' 'sensors.curr' line $((sensors_priority + 3)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.curr_$id \$1\""
-					divisor=1000
-					;;
-
-				power)
-					files="$( ls "$path"/power*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.power_$id '' '$name Power' 'Watt' 'power' 'sensors.power' line $((sensors_priority + 4)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.power_$id \$1\""
-					divisor=1000000
-					;;
-
-				fans)
-					files="$( ls "$path"/fan*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' 'fans' 'sensors.fans' line $((sensors_priority + 5)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.fan_$id \$1\""
-					;;
-
-				energy)
-					files="$( ls "$path"/energy*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' 'energy' 'sensors.energy' areastack $((sensors_priority + 6)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.energy_$id \$1\""
-					algorithm="incremental"
-					divisor=1000000
-					;;
-
-				humidity)
-					files="$( ls "$path"/humidity*_input 2>/dev/null )"
-					files="$( sensors_check_files "$files" )"
-					[ -z "$files" ] && continue
-					echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' 'humidity' 'sensors.humidity' line $((sensors_priority + 7)) $sensors_update_every"
-					echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.humidity_$id \$1\""
-					divisor=1000
-					;;
-
-				*)
-					continue
-					;;
+			temperature)
+				files="$(
+					ls "$path"/temp*_input 2>/dev/null
+					ls "$path/temp" 2>/dev/null
+				)"
+				files="$(sensors_check_files "$files")"
+				files="$(sensors_check_temp_type "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.temp_$id '' '$name Temperature' 'Celsius' 'temperature' 'sensors.temp' line $((sensors_priority + 1)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.temp_$id \$1\""
+				divisor=1000
+				;;
+
+			voltage)
+				files="$(ls "$path"/in*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' 'voltage' 'sensors.volt' line $((sensors_priority + 2)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.volt_$id \$1\""
+				divisor=1000
+				;;
+
+			current)
+				files="$(ls "$path"/curr*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' 'current' 'sensors.curr' line $((sensors_priority + 3)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.curr_$id \$1\""
+				divisor=1000
+				;;
+
+			power)
+				files="$(ls "$path"/power*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.power_$id '' '$name Power' 'Watt' 'power' 'sensors.power' line $((sensors_priority + 4)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.power_$id \$1\""
+				divisor=1000000
+				;;
+
+			fans)
+				files="$(ls "$path"/fan*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' 'fans' 'sensors.fans' line $((sensors_priority + 5)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.fan_$id \$1\""
+				;;
+
+			energy)
+				files="$(ls "$path"/energy*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' 'energy' 'sensors.energy' areastack $((sensors_priority + 6)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.energy_$id \$1\""
+				algorithm="incremental"
+				divisor=1000000
+				;;
+
+			humidity)
+				files="$(ls "$path"/humidity*_input 2>/dev/null)"
+				files="$(sensors_check_files "$files")"
+				[ -z "$files" ] && continue
+				echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' 'humidity' 'sensors.humidity' line $((sensors_priority + 7)) $sensors_update_every"
+				echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.humidity_$id \$1\""
+				divisor=1000
+				;;
+
+			*)
+				continue
+				;;
 			esac
 
-			for x in $files
-			do
+			for x in $files; do
 				file="$x"
-				fid="$( fixid "$file" )"
-				lfile="$( basename "$file" | sed "s|_input$|_label|g" )"
-				labelname="$( basename "$file" | sed "s|_input$||g" )"
+				fid="$(fixid "$file")"
+				lfile="$(basename "$file" | sed "s|_input$|_label|g")"
+				labelname="$(basename "$file" | sed "s|_input$||g")"
 
-				if [ ! "$path/$lfile" = "$file" ] && [ -f "$path/$lfile" ]
-				then
-					labelname="$( cat "$path/$lfile" )"
+				if [ ! "$path/$lfile" = "$file" ] && [ -f "$path/$lfile" ]; then
+					labelname="$(cat "$path/$lfile")"
 				fi
 
 				echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
@@ -252,4 +248,3 @@ sensors_update() {
 
 	return 0
 }
-
diff --git a/collectors/charts.d.plugin/squid/README.md b/collectors/charts.d.plugin/squid/README.md
index 0934ccfcf..cfb61790a 100644
--- a/collectors/charts.d.plugin/squid/README.md
+++ b/collectors/charts.d.plugin/squid/README.md
@@ -1,9 +1,8 @@
-> THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
-
-
 # squid
 
+> THIS MODULE IS OBSOLETE.
+> USE [THE PYTHON ONE](../../python.d.plugin/squid) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
 The plugin will monitor a squid server.
 
 It will produce 4 charts:
@@ -64,3 +63,5 @@ squid_update_every=5
 ```
 
 ---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Fsquid%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/squid/squid.chart.sh b/collectors/charts.d.plugin/squid/squid.chart.sh
index cf5d1d78a..ebddb32c6 100644
--- a/collectors/charts.d.plugin/squid/squid.chart.sh
+++ b/collectors/charts.d.plugin/squid/squid.chart.sh
@@ -25,13 +25,10 @@ squid_get_stats() {
 squid_autodetect() {
 	local host="127.0.0.1" port url x
 
-	for port in 3128 8080
-	do
-		for url in "cache_object://$host:$port/counters" "/squid-internal-mgr/counters"
-		do
+	for port in 3128 8080; do
+		for url in "cache_object://$host:$port/counters" "/squid-internal-mgr/counters"; do
 			x=$(squid_get_stats_internal "$host" "$port" "$url" | grep client_http.requests)
-			if [ ! -z "$x" ]
-			then
+			if [ ! -z "$x" ]; then
 				squid_host="$host"
 				squid_port="$port"
 				squid_url="$url"
@@ -50,8 +47,7 @@ squid_check() {
 	require_cmd sed || return 1
 	require_cmd egrep || return 1
 
-	if [ -z "$squid_host" ] || [ -z "$squid_port" ] || [ -z "$squid_url" ]
-	then
+	if [ -z "$squid_host" ] || [ -z "$squid_port" ] || [ -z "$squid_url" ]; then
 		squid_autodetect || return 1
 	fi
 
@@ -59,8 +55,7 @@ squid_check() {
 	local x
 	x="$(squid_get_stats | grep client_http.requests)"
 	# shellcheck disable=SC2181
-	if [ ! $? -eq 0 ] || [ -z "$x" ]
-	then
+	if [ ! $? -eq 0 ] || [ -z "$x" ]; then
 		error "cannot fetch URL '$squid_url' by connecting to $squid_host:$squid_port. Please set squid_url='url' and squid_host='host' and squid_port='port' in $confd/squid.conf"
 		return 1
 	fi
@@ -93,7 +88,6 @@ EOF
 	return 0
 }
 
-
 squid_update() {
 	# the first argument to this function is the microseconds since last update
 	# pass this parameter to the BEGIN statement (see bellow).
@@ -114,8 +108,8 @@ squid_update() {
 	# even if something goes wrong, no other code can be executed
 
 	# shellcheck disable=SC1117
-	eval "$(squid_get_stats |\
-		 sed -e "s/ \+/ /g" -e "s/\./_/g" -e "s/^\([a-z0-9_]\+\) *= *\([0-9]\+\)$/local squid_\1=\2/g" |\
+	eval "$(squid_get_stats |
+		sed -e "s/ \+/ /g" -e "s/\./_/g" -e "s/^\([a-z0-9_]\+\) *= *\([0-9]\+\)$/local squid_\1=\2/g" |
 		grep -E "^local squid_(client_http|server_all)_[a-z0-9_]+=[0-9]+$")"
 
 	# write the result of the work.
diff --git a/collectors/charts.d.plugin/tomcat/README.md b/collectors/charts.d.plugin/tomcat/README.md
index d82951aac..843378604 100644
--- a/collectors/charts.d.plugin/tomcat/README.md
+++ b/collectors/charts.d.plugin/tomcat/README.md
@@ -1,2 +1,6 @@
+# tomcat
+
 > THIS MODULE IS OBSOLETE.
-> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+> USE [THE PYTHON ONE](../../python.d.plugin/tomcat) - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fcharts.d.plugin%2Ftomcat%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
diff --git a/collectors/charts.d.plugin/tomcat/tomcat.chart.sh b/collectors/charts.d.plugin/tomcat/tomcat.chart.sh
index 294487b8b..9ca75e63e 100644
--- a/collectors/charts.d.plugin/tomcat/tomcat.chart.sh
+++ b/collectors/charts.d.plugin/tomcat/tomcat.chart.sh
@@ -32,24 +32,23 @@ tomcat_priority=60000
 # will be in the proper units
 tomcat_decimal_detail=1000000
 
-# used by volume chart to convert bytes to KB
-tomcat_decimal_KB_detail=1000
+# used by volume chart to convert bytes to kB
+tomcat_decimal_kB_detail=1000
 
 tomcat_check() {
 
 	require_cmd xmlstarlet || return 1
 
-
 	# check if url, username, passwords are set
 	if [ -z "${tomcat_url}" ]; then
-	  	error "tomcat url is unset or set to the empty string"
+		error "tomcat url is unset or set to the empty string"
 		return 1
 	fi
 	if [ -z "${tomcat_user}" ]; then
 		# check backwards compatibility
 		# shellcheck disable=SC2154
 		if [ -z "${tomcatUser}" ]; then
-    	  	error "tomcat user is unset or set to the empty string"
+			error "tomcat user is unset or set to the empty string"
 			return 1
 		else
 			tomcat_user="${tomcatUser}"
@@ -59,7 +58,7 @@ tomcat_check() {
 		# check backwards compatibility
 		# shellcheck disable=SC2154
 		if [ -z "${tomcatPassword}" ]; then
-	    	error "tomcat password is unset or set to the empty string"
+			error "tomcat password is unset or set to the empty string"
 			return 1
 		else
 			tomcat_password="${tomcatPassword}"
@@ -69,8 +68,7 @@ tomcat_check() {
 	# check if we can get to tomcat's status page
 	tomcat_get
 	# shellcheck disable=2181
-	if [ $? -ne 0 ]
-		then
+	if [ $? -ne 0 ]; then
 		error "cannot get to status page on URL '${tomcat_url}'. Please make sure tomcat url, username and password are correct."
 		return 1
 	fi
@@ -84,8 +82,12 @@ tomcat_check() {
 
 tomcat_get() {
 	# collect tomcat values
-	tomcat_port="$(IFS=/ read -ra a <<< "$tomcat_url"; hostport=${a[2]}; echo "${hostport#*:}")"
-	mapfile -t lines < <(run curl -u "$tomcat_user":"$tomcat_password" -Ss ${tomcat_curl_opts} "$tomcat_url" |\
+	tomcat_port="$(
+		IFS=/ read -ra a <<<"$tomcat_url"
+		hostport=${a[2]}
+		echo "${hostport#*:}"
+	)"
+	mapfile -t lines < <(run curl -u "$tomcat_user":"$tomcat_password" -Ss ${tomcat_curl_opts} "$tomcat_url" |
 		run xmlstarlet sel \
 			-t -m "/status/jvm/memory" -v @free \
 			-n -m "/status/connector[@name='\"http-bio-$tomcat_port\"']/threadInfo" -v @currentThreadCount \
@@ -107,8 +109,8 @@ tomcat_create() {
 	cat <<EOF
 CHART tomcat.accesses '' "tomcat requests" "requests/s" statistics tomcat.accesses area $((tomcat_priority + 8)) $tomcat_update_every
 DIMENSION accesses '' incremental
-CHART tomcat.volume '' "tomcat volume" "KB/s" volume tomcat.volume area $((tomcat_priority + 5)) $tomcat_update_every
-DIMENSION volume '' incremental divisor ${tomcat_decimal_KB_detail}
+CHART tomcat.volume '' "tomcat volume" "kB/s" volume tomcat.volume area $((tomcat_priority + 5)) $tomcat_update_every
+DIMENSION volume '' incremental divisor ${tomcat_decimal_kB_detail}
 CHART tomcat.threads '' "tomcat threads" "current threads" statistics tomcat.threads line $((tomcat_priority + 6)) $tomcat_update_every
 DIMENSION current '' absolute 1
 DIMENSION busy '' absolute 1
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2019-02-08 07:30:37 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2019-02-08 07:30:37 +0000
commit	8a7b72f7cd1ccd547a03eb4243294e741d661d3f (patch)
tree	7bc7be4a8e9e298daa1349348400aa2a653866f2 /collectors/charts.d.plugin
parent	New upstream version 1.11.1+dfsg (diff)
download	netdata-8a7b72f7cd1ccd547a03eb4243294e741d661d3f.tar.xz netdata-8a7b72f7cd1ccd547a03eb4243294e741d661d3f.zip