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Annotation of src/gnu/dist/gdb6/move-if-change, Revision 1.1.1.1

1.1       nathanw     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