[Script] Back up log files on Linux

script for backing up log files on Linux
can setup with cron job

NOWDATE=`date +%Y-%m-%d`
YEAR=`date +%Y`
MONTH=`date +%m`
DAY=`date +%d`
HOUR=`date +%H`
MIN=`date +%M`

#create folder if not exist
mkdir -p /root/log/"$YEAR"/"$MONTH"/"$DAY"

#backup httpd logs
tar -cvf /root/log/"$YEAR"/"$MONTH"/"$DAY"/log_"$NOWDATE"_"$HOUR"_"$MIN".tar /var/log/