1 files changed, 27 insertions, 17 deletions
diff --git a/move-if-change b/move-if-change
index ff74a556d..ee1b348be 100755
--- a/move-if-change
+++ b/move-if-change
@@ -1,22 +1,32 @@
 #!/bin/sh
-# Like mv $1 $2, but if the files are the same, just delete $1.
-# Status is zero if successful, nonzero otherwise.
 
-usage="$0: usage: $0 SOURCE DEST"
+# Copyright (C) 1996 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 2 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, write to the Free Software
+# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-case $# in
-2) ;;
-*) echo "$usage" >&2; exit 1;;
-esac
-
-for arg in "$1" "$2"; do
-  case $arg in
-   -*) echo "$usage" >&2; exit 1;;
-  esac
-done
-
-if test -r "$2" && cmp -s "$1" "$2"; then
-  rm -f "$1"
+if
+test -r $2
+then
+if
+cmp $1 $2 > /dev/null
+then
+echo $2 is unchanged
+rm -f $1
+else
+mv -f $1 $2
+fi
 else
-  mv -f "$1" "$2"
+mv -f $1 $2
 fi