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- #!/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
-