#!/bin/sh
#
# chmod +x on this file to run
# usage "./rotate filename"
# Will rotate a log (or any file)
# and increment a .[0-8] after it.
# 
# Usefull for rotating large /var/log/messages logs
# to only keep a weeks work (or more)
#
# Use at your own risk 
#

PATH="/usr/bin:/sbin:/usr/sbin:/bin"

filelist=$*



for file in $filelist
do
        files="$files `echo $file | /usr/bin/egrep -v '\.[0-9]$'`"
done

for file in $files
do
  for oldfile in 8 7 6 5 4 3 2 1 0
  do
        if [ -f $file.$oldfile ]
        then
               /bin/mv $file.$oldfile $file.`/usr/bin/expr $oldfile + 1`
        fi
  done
done

for file in $files
do
        if [ -f $file ]
        then
                /bin/cp $file $file.0
                /bin/cat /dev/null > $file
        fi
done