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mtools_3.6.src.lzh
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MTOOLS_3.6
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uz
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1997-11-12
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1KB
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62 lines
#!/bin/sh
# uz [file...]
# lz [file...]
#
# If called "uz", gunzips and extracts a gzip'd tar'd archive.
# If called "lz", gunzips and shows a listing of a gzip'd tar'd archive.
#
# Requires: gzip and tar in the user's path. Should work with most tars.
# "-" is now used for backwards compatibility with antique tars, e.g. SCO.
#
# 1994/02/19 DCN Created (as a trivial, but useful script)
# 1994/12/01 DCN Combined uz and lz, added suffix handling
#
# Copyright (C) 1994 David C. Niemi (niemidc@erols.com)
# The author requires that any copies or derived works include this
# copyright notice; no other restrictions are placed on its use.
#
set -e
set -u
case $0 in
*uz)
tarparam="-pxvf"
action="Extracting from "
;;
*lz)
tarparam="-tvf"
action="Reading directory of "
;;
*)
echo "$0: expect to be named either \"uz\" or \"lz\"." >&2
exit 1
;;
esac
if [ $# = 0 ]; then
echo "$action standard input." >&2
gzip -cd - | tar "$tarparam" -
exit 0
fi
while [ $# -ge 1 ]; do
echo >&2
found=
for suffix in "" .gz .tgz .tar.gz .z .tar.z .taz .tpz .Z .tar.Z ; do
if [ -r "${1}$suffix" ]; then
found=$1$suffix;
break;
fi
done
if [ -z "$found" ]; then
echo "$0: could not read \"$1\"." >&2
else
echo "$action \"$found\"." >&2
gzip -cd -- "$found" | tar "$tarparam" -
fi
shift
done
exit 0