How to take backup of crontab in linux
List cron in Linux RHEL/CentOS/Fedora
#crontab -l
5 * * * * /usr/local/bin/sarg -x
Crontab file save in locaiton: /var/spool/cron/
List the cron location
#ls -l /var/spool/cron/
root
#cat /var/spool/cron/root
5 * * * * /usr/local/bin/sarg -x
Now you can copy cron file
#cp -rf /var/spool/cron/* /backup-location