7 files changed, 349 insertions, 0 deletions
diff --git a/examples/scripts/cat.sh b/examples/scripts/cat.sh
new file mode 100644
index 0000000..3e65b3f
--- /dev/null
+++ b/examples/scripts/cat.sh
@@ -0,0 +1,12 @@
+shcat()
+{
+	while read -r ; do
+		printf "%s\n" "$REPLY"
+	done
+}
+
+if [ -n "$1" ]; then
+	shcat < "$1"
+else
+	shcat
+fi
diff --git a/examples/scripts/center b/examples/scripts/center
new file mode 100644
index 0000000..dbe6133
--- /dev/null
+++ b/examples/scripts/center
@@ -0,0 +1,41 @@
+#! /bin/bash
+#
+# center - center a group of lines
+#
+# tabs in the lines might cause this to look a little bit off
+#
+#
+#  Chet Ramey <chet.ramey@case.edu>
+#
+#  Copyright 1999 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+width=${COLUMNS:-80}
+
+if [[ $# == 0 ]]
+then
+	set -- /dev/stdin
+fi
+
+for file
+do
+	while read -r
+	do
+		printf "%*s\n" $(( (width+${#REPLY})/2 )) "$REPLY"
+	done < $file
+done
+
+exit 0
diff --git a/examples/scripts/inpath b/examples/scripts/inpath
new file mode 100755
index 0000000..95f28bc
--- /dev/null
+++ b/examples/scripts/inpath
@@ -0,0 +1,19 @@
+#! /bin/sh
+#
+# Search $PATH for a file the same name as $1; return TRUE if found.
+#
+
+command=$1
+[ -n "$command" ] || exit 1
+
+set `echo $PATH | sed 's/^:/.:/
+			s/::/:.:/g
+			s/:$/:./
+			s/:/ /g'`
+	
+while [ $# -ne 0 ] ; do
+	[ -f $1/$command ] && exit 0	# test -x not universal
+	shift
+done
+
+exit 1
diff --git a/examples/scripts/shprompt b/examples/scripts/shprompt
new file mode 100755
index 0000000..098c45f
--- /dev/null
+++ b/examples/scripts/shprompt
@@ -0,0 +1,153 @@
+#
+# shprompt -- give a prompt and get an answer satisfying certain criteria
+#
+# shprompt [-dDfFsy] prompt
+#	s = prompt for string
+#	f = prompt for filename
+#	F = prompt for full pathname to a file or directory
+#	d = prompt for a directory name
+#	D = prompt for a full pathname to a directory
+#	y = prompt for y or n answer
+#
+# Chet Ramey
+# chet@ins.CWRU.Edu
+#
+#  Copyright 2002 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+type=file
+
+OPTS=dDfFsy
+
+succeed()
+{
+	echo "$1"
+	exit 0
+}
+
+while getopts "$OPTS" c
+do
+	case "$c" in
+	s)	type=string
+		;;
+	f)	type=file
+		;;
+	F)	type=path
+		;;
+	d)	type=dir
+		;;
+	D)	type=dirpath
+		;;
+	y)	type=yesno
+		;;
+	?)	echo "usage: $0 [-$OPTS] prompt" 1>&2
+		exit 2
+		;;
+	esac
+done
+
+if [ "$OPTIND" -gt 1 ] ; then
+	shift $(( $OPTIND - 1 ))
+fi
+
+while :
+do
+	case "$type" in
+	string)
+		echo -n "$1" 1>&2
+		read ans || exit 1
+		if [ -n "$ans" ] ; then
+			succeed "$ans"
+		fi
+		;;
+	file|path)
+		echo -n "$1" 1>&2
+		read ans || exit 1
+		#
+		# use `fn' and eval so that bash will do tilde expansion for
+		# me
+		#
+		eval fn="$ans"
+		case "$fn" in
+		/*)	if test -e "$fn" ; then
+				succeed "$fn"
+			else
+				echo "$0: '$fn' does not exist" 1>&2
+			fi
+			;;
+		*)	if [ "$type" = "path" ] ; then
+				echo "$0: must give full pathname to file" 1>&2
+			else
+				if test -e "$fn" ; then
+					succeed "$fn"
+				else
+					echo "$0: '$fn' does not exist" 1>&2
+				fi
+			fi
+			;;
+		esac
+		;;
+	dir|dirpath)
+		echo -n "$1" 1>&2
+		read ans || exit 1
+		#
+		# use `fn' and eval so that bash will do tilde expansion for
+		# me
+		#
+		eval fn="$ans"
+		case "$fn" in
+		/*)	if test -d "$fn" ; then
+				succeed "$fn"
+			elif test -e "$fn" ; then
+				echo "$0 '$fn' is not a directory" 1>&2
+			else
+				echo "$0: '$fn' does not exist" 1>&2
+			fi
+			;;
+		*)	if [ "$type" = "dirpath" ] ; then
+				echo "$0: must give full pathname to directory" 1>&2
+			else
+				if test -d "$fn" ; then
+					succeed "$fn"
+				elif test -e "$fn" ; then
+					echo "$0 '$fn' is not a directory" 1>&2
+				else
+					echo "$0: '$fn' does not exist" 1>&2
+				fi
+			fi
+			;;
+		esac
+		;;
+	yesno)
+		echo -n "$1" 1>&2
+		read ans || exit 1
+		case "$ans" in
+		y|Y|[yY][eE][sS])
+			succeed "yes"
+			;;
+		n|N|[nN][oO])
+			succeed "no"
+			exit 0
+			;;
+		*)
+			echo "$0: yes or no required" 1>&2
+			;;
+		esac
+		;;
+	esac
+done
+
+exit 1
diff --git a/examples/scripts/spin.bash b/examples/scripts/spin.bash
new file mode 100644
index 0000000..9fa9125
--- /dev/null
+++ b/examples/scripts/spin.bash
@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+# spin.bash -- provide a `spinning wheel' to show progress
+#
+# Chet Ramey
+# chet@po.cwru.edu
+#
+#  Copyright 1997 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+bs=$'\b'
+ 
+chars="|${bs} \\${bs} -${bs} /${bs}"
+ 
+# Infinite loop for demo. purposes
+while :
+do
+    for letter in $chars
+    do
+        echo -n ${letter}
+    done
+done
+
+exit 0
diff --git a/examples/scripts/xterm_title b/examples/scripts/xterm_title
new file mode 100755
index 0000000..839003f
--- /dev/null
+++ b/examples/scripts/xterm_title
@@ -0,0 +1,44 @@
+#! /bin/bash
+#
+# xterm_title - print the contents of the xterm title bar
+#
+# Derived from http://www.clark.net/pub/dickey/xterm/xterm.faq.html#how2_title
+#
+
+#  Copyright 1997 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+P=${0##*/}
+[ -z "$DISPLAY" ] && {
+	echo "${P}: not running X" >&2
+	exit 1
+}
+
+if [ -z "$TERM" ] || [ "$TERM" != "xterm" ]; then
+	echo "${P}: not running in an xterm" >&2
+	exit 1
+fi
+
+exec </dev/tty
+old=$(stty -g)
+stty raw -echo min 0  time ${1-10}
+echo -e "\033[21t\c" > /dev/tty
+IFS='' read -r a
+stty $old
+b=${a#???}
+echo "${b%??}"
+
+exit 0
diff --git a/examples/scripts/zprintf b/examples/scripts/zprintf
new file mode 100755
index 0000000..86f9e95
--- /dev/null
+++ b/examples/scripts/zprintf
@@ -0,0 +1,43 @@
+#! /bin/bash
+#
+# zprintf - function that calls gawk to do printf for those systems that
+#	    don't have a printf executable
+#
+# The format and arguments can have trailing commas, just like gawk
+#
+# example:
+#	zprintf 'Eat %x %x and suck %x!\n' 57005 48879 64206
+#
+# Chet Ramey
+# chet@po.cwru.edu
+
+#  Copyright 1996 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+[ $# -lt 1 ] && {
+	echo "zprintf: usage: zprintf format [args ...]" >&2
+	exit 2
+}
+
+fmt="${1%,}"
+shift
+
+for a in "$@"; do
+	args="$args,\"${a%,}\""
+done
+
+gawk "BEGIN { printf \"$fmt\" $args }"