blob: ff74a556d2d716f54d83511968988333bfc61f80 [file] [log] [blame]
#!/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"
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"
else
mv -f "$1" "$2"
fi