Simple log rotate bash script

Simple:

• Change the MAXSIZE & LOGDIR
• Add a cron job

Cron job weekly at 5am
crontab: 0 5 * * 1 /var/www/log/logrotate.sh

#!/bin/bash

MAXSIZE=1024
LOGDIR=/var/www/log/

if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

cd $LOGDIR

for FILENAME in *.log; do
        SIZE=$(du -b $FILENAME | cut -f 1)
        if(($SIZE>$MAXSIZE)); then
                TIMESTAMP=`date +%Y%m%d`
                NEWFILENAME=$FILENAME.$TIMESTAMP
                mv $FILENAME $NEWFILENAME
                touch $FILENAME
                chown www-data.tamer $FILENAME
                gzip -f -9 $NEWFILENAME
                chown tamer.www-data $NEWFILENAME.gz
        fi
done