#!/bin/sh # Like mv $1 $2, but if the files are the same, just delete $1. # Status is zero if successful, nonzero otherwise. VERSION='2011-01-28 20:09'; # UTC # The definition above must lie within the first 8 lines in order # for the Emacs time-stamp write hook (at end) to update it. # If you change this file with Emacs, please let the write hook # do its job. Otherwise, update this string manually. # Copyright (C) 2002-2007, 2009-2011 Free Software Foundation, Inc. # 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 3 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. # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. usage="usage: $0 SOURCE DEST" help="$usage or: $0 OPTION If SOURCE is different than DEST, then move it to DEST; else remove SOURCE. --help display this help and exit --version output version information and exit The variable CMPPROG can be used to specify an alternative to \`cmp'. Report bugs to <bug-gnulib@gnu.org>." version=`expr "$VERSION" : '\([^ ]*\)'` version="move-if-change (gnulib) $version Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law." cmpprog=${CMPPROG-cmp} for arg do case $arg in --help | --hel | --he | --h) exec echo "$help" ;; --version | --versio | --versi | --vers | --ver | --ve | --v) exec echo "$version" ;; --) shift break ;; -*) echo "$0: invalid option: $arg" >&2 exit 1 ;; *) break ;; esac done test $# -eq 2 || { echo "$0: $usage" >&2; exit 1; } if test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null; then rm -f -- "$1" else if mv -f -- "$1" "$2"; then :; else # Ignore failure due to a concurrent move-if-change. test -r "$2" && $cmpprog -- "$1" "$2" >/dev/null && rm -f -- "$1" fi fi ## Local Variables: ## eval: (add-hook 'write-file-hooks 'time-stamp) ## time-stamp-start: "VERSION='" ## time-stamp-format: "%:y-%02m-%02d %02H:%02M" ## time-stamp-time-zone: "UTC" ## time-stamp-end: "'; # UTC" ## End: