logrotate_Script

#!/bin/bash
logfile=$1
if [ ! -f $logfile ]; then
  echo "log files in $logfile not found "
  exit 1
fi

timestamp=`date +%Y%m%d`
newlogfile=$logfile.$timestamp
cp $logfile $newlogfile
cat /dev/null > $logfile
gzip -f -9 $newlogfile