Various scripts in various languages.
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#!/bin/sh
#
# lz, Copyright © 2010 Matteo Cypriani
#
# This program is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What The Fuck You Want
# To Public License, Version 2, as published by Sam Hocevar. See
# http://sam.zoy.org/wtfpl/COPYING for more details.
#
# This script emulates and extends the lz and uz commands of the mtools.
# It handles: .tar, .tar.gz, .tar.bz2, .tar.xz, .tar.lzma and .tar.Z,
# through the standards options of GNU tar.
# If the script name is "lz", the archive content is displayed. If the
# name is "uz", it is extracted.
# Note that you need GNU Tar, at least version 1.22 to support XZ files.
## Verify program name ##
PROGRAM=`basename $0`
if [ "$PROGRAM" = "lz" ] ; then
ACTION="t"
elif [ "$PROGRAM" = "uz" ] ; then
ACTION="x"
else
echo '$0 = "'"$0"' (not "lz" nor "uz")!' >&2
exit 1
fi
## Verify number of arguments ##
if [ $# -lt 1 ] ; then
echo "$PROGRAM requires at least one argument!" >&2
exit 2
fi
## Process files ##
for F in "$@" ; do
# Simple Tar archive
if [ `basename "$F" .tar` != "$F" ] ; then
FORMAT=""
# GZipped Tar
elif [ `basename "$F" .tar.gz` != "$F" \
-o `basename "$F" .tgz` != "$F" ] ; then
FORMAT="--gzip"
# BZipped Tar
elif [ `basename "$F" .tar.bz2` != "$F" \
-o `basename "$F" .tbz` != "$F" \
-o `basename "$F" .tb2` != "$F" ] ; then
FORMAT="--bzip"
# XZipped Tar
elif [ `basename "$F" .tar.xz` != "$F" \
-o `basename "$F" .txz` != "$F" ] ; then
FORMAT="--xz"
# Compressed Tar
elif [ `basename "$F" .tar.Z` != "$F" \
-o `basename "$F" .taz` != "$F" ] ; then
FORMAT="--compress"
# LZMA compressed Tar
elif [ `basename "$F" .tar.lzma` != "$F" \
-o `basename "$F" .tlz` != "$F" ] ; then
FORMAT="--lzma"
# Unknown extension
else
echo "Extension of file « $F » unknown! (skipping)" >&2
continue
fi
tar "$FORMAT" -"$ACTION"f "$F"
done