123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- #!/bin/sh
- # Like mv $1 $2, but if the files are the same, just delete $1.
- # Status is zero if successful, nonzero otherwise.
- VERSION='2012-01-06 07:23'; # 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) 2002-2014 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:
|