| Current File : //usr/bin/xzless |
#!/bin/sh
# Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation
# The original version for gzip was written by Paul Eggert.
# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
# 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 of the License, or
# (at your option) any later version.
# This 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.
#SET_PATH - This line is a placeholder to ease patching this script.
# Instead of unsetting XZ_OPT, just make sure that xz will use file format
# autodetection. This way memory usage limit and thread limit can be
# specified via XZ_OPT.
xz='xz --format=auto'
version='xzless (XZ Utils) 5.2.4'
usage="Usage: ${0##*/} [OPTION]... [FILE]...
Like 'less', but operate on the uncompressed contents of xz compressed FILEs.
Options are the same as for 'less'.
Report bugs to <lasse.collin@tukaani.org>."
case $1 in
--help) echo "$usage" || exit 2; exit;;
--version) echo "$version" || exit 2; exit;;
esac
if test "${LESSMETACHARS+set}" != set; then
# Work around a bug in less 394 and earlier;
# it mishandles the metacharacters '$%=~'.
space=' '
tab=' '
nl='
'
LESSMETACHARS="$space$tab$nl'"';*?"()<>[|&^`#\$%=~'
fi
if test "$(less -V | { read less ver re && echo ${ver}; })" -ge 429; then
# less 429 or later: LESSOPEN pipe will be used on
# standard input if $LESSOPEN begins with |-.
LESSOPEN="|-$xz -cdfq -- %s"
else
LESSOPEN="|$xz -cdfq -- %s"
fi
export LESSMETACHARS LESSOPEN
exec less "$@"