#!/bin/sh# vim: set sw=4 ts=4 et: ver="0.1"help(){ cat << HELP rotatefile -- rotate the file name USAGE: rotatefile [-h] filename OPTIONS: -h help text EXAMPLE: rotatefile out This will e.g rename out.2 to out.3, out.1 to out.2, out to out.1[BR] and create an empty out-file The max number is 10 version $ver HELP exit 0} error(){ echo "$1" exit 1} while [ -n "$1" ]; do case $1 in -h) help;shift 1;; --) break;; -*) echo "error: no such option $1. -h for help";exit 1;; *) break;; esacdone # input check:if [ -z "$1" ] ; then error "ERROR: you must specify a file, use -h for help"fi filen="$1"# rename any .1 , .2 etc file:for n in 9 8 7 6 5 4 3 2 1; do if [ -f "$filen.$n" ]; then p=`expr $n + 1` echo "mv $filen.$n $filen.$p" mv $filen.$n $filen.$p fidone # rename the original file:if [ -f "$filen" ]; then echo "mv $filen $filen.1" mv $filen $filen.1fi echo touch $filentouch $filen
