xref: /netbsd-src/usr.bin/gzip/zforce (revision 3a92ef57daad54c476f1783d4bffed4a43b773d1)
15ddb4360Smrg#!/bin/sh -
25ddb4360Smrg#
3*3a92ef57Swiz# $NetBSD: zforce,v 1.2 2003/12/28 12:43:43 wiz Exp $
4*3a92ef57Swiz#
55ddb4360Smrg# $OpenBSD: zforce,v 1.2 2003/08/05 18:22:17 deraadt Exp $
65ddb4360Smrg#
75ddb4360Smrg# Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
85ddb4360Smrg#
95ddb4360Smrg# Permission to use, copy, modify, and distribute this software for any
105ddb4360Smrg# purpose with or without fee is hereby granted, provided that the above
115ddb4360Smrg# copyright notice and this permission notice appear in all copies.
125ddb4360Smrg#
135ddb4360Smrg# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
145ddb4360Smrg# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
155ddb4360Smrg# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
165ddb4360Smrg# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
175ddb4360Smrg# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
185ddb4360Smrg# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
195ddb4360Smrg# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
205ddb4360Smrg#
215ddb4360Smrgprog=`basename $0`
225ddb4360SmrgUSAGE="usage: $prog file ..."
235ddb4360Smrgif test $# -eq 0; then
245ddb4360Smrg	echo $USAGE
255ddb4360Smrg	exit 1
265ddb4360Smrgfi
275ddb4360Smrg
285ddb4360Smrgret=0
295ddb4360Smrg
305ddb4360Smrgwhile test $# -ne 0; do
315ddb4360Smrg	case "$1" in
325ddb4360Smrg		*[._-]gz)
335ddb4360Smrg			shift
345ddb4360Smrg			;;
355ddb4360Smrg		*.t[ag]z)
365ddb4360Smrg			shift
375ddb4360Smrg			;;
385ddb4360Smrg		*)
395ddb4360Smrg			if file "$1" |
405ddb4360Smrg				grep -q "gzip compressed data" 2> /dev/null
415ddb4360Smrg			then
425ddb4360Smrg				n="$1".gz
435ddb4360Smrg				if mv "$1" "$n" 2> /dev/null; then
445ddb4360Smrg					echo "$1" -- renamed to "$n"
455ddb4360Smrg				else
465ddb4360Smrg					ret=1
475ddb4360Smrg					echo $prog: cannot rename "$1" to "$n"
485ddb4360Smrg				fi
495ddb4360Smrg			fi
505ddb4360Smrg			shift
515ddb4360Smrg			;;
525ddb4360Smrg	esac
535ddb4360Smrgdone
545ddb4360Smrgexit $ret
55