# To add cronjob # For no output echo "* * * * * command >> /dev/null 2>&1" | crontab - # output to file echo "* * * * * command >> cron.logs 2>&1" | crontab - # view crons crontab -l # edit crons using editor crontab -e # view CRON system logs grep CRON /var/log/syslog