| #!/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 |