Mercurial > hg > CbC > CbC_gcc
annotate move-if-change @ 60:bd49c42ec43e
remove unnecessary files
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 15 Feb 2010 17:39:45 +0900 |
| parents | a06113de4d67 |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 #!/bin/sh |
| 2 # Like mv $1 $2, but if the files are the same, just delete $1. | |
| 3 # Status is zero if successful, nonzero otherwise. | |
| 4 | |
| 5 usage="$0: usage: $0 SOURCE DEST" | |
| 6 | |
| 7 case $# in | |
| 8 2) ;; | |
| 9 *) echo "$usage" >&2; exit 1;; | |
| 10 esac | |
| 11 | |
| 12 for arg in "$1" "$2"; do | |
| 13 case $arg in | |
| 14 -*) echo "$usage" >&2; exit 1;; | |
| 15 esac | |
| 16 done | |
| 17 | |
| 18 if test -r "$2" && cmp -s "$1" "$2"; then | |
| 19 rm -f "$1" | |
| 20 else | |
| 21 mv -f "$1" "$2" | |
| 22 fi |