diff options
Diffstat (limited to 'zgrep.in')
| -rw-r--r-- | zgrep.in | 22 |
1 files changed, 21 insertions, 1 deletions
@@ -8,6 +8,7 @@ LC_ALL=C export LC_ALL args= +default_prog=gzip have_pat=0 list=0 no_name=0 @@ -24,7 +25,9 @@ while [ x"$1" != x ] ; do echo "transparent search on any combination of compressed and non-compressed" echo "files. If any given file is compressed, its uncompressed content is" echo "used. If a given file does not exist, zgrep tries the compressed file" - echo "names corresponding to the supported compressors." + echo "names corresponding to the supported compressors. If no files are" + echo "specified, the standard input is decompressed using the selected" + echo "compressor and fed to grep." echo "The supported compressors are gzip, bzip2, lzip and xz." echo echo "Zegrep is a shortcut for \"zgrep -E\"" @@ -38,6 +41,10 @@ while [ x"$1" != x ] ; do echo "Options:" echo " -h, --help display this help and exit" echo " -V, --version output version information and exit" + echo " --gzip use gzip as decompressor for stdin (default)" + echo " --bzip2 use bzip2 as decompressor for stdin" + echo " --lzip use lzip as decompressor for stdin" + echo " --xz use xz as decompressor for stdin" echo echo "Report bugs to zutils-bug@nongnu.org" echo "Zutils home page: http://www.nongnu.org/zutils/zutils.html" @@ -48,6 +55,14 @@ while [ x"$1" != x ] ; do echo "This script is free software: you have unlimited permission" echo "to copy, distribute and modify it." exit 0 ;; + --gz*) + default_prog=gzip ;; + --bz*) + default_prog=bzip2 ;; + --lz*) + default_prog=lzip ;; + --xz*) + default_prog=xz ;; -[drRzZ] | --di* | --exc* | --inc* | --nu* | --rec*) echo "$0: option $1 not supported" exit 1 ;; @@ -80,6 +95,11 @@ if [ ${have_pat} = 0 ]; then exit 1 fi +if [ $# = 0 ]; then + ${default_prog} -cdfq | grep ${args} + exit $? +fi + retval=0 for i in "$@" ; do if [ "$i" = "--" ] && [ ${two_hyphens} = 0 ] ; then two_hyphens=1 |