Cron Jobs: Scheduled Tasks on Linux

Cron Syntax

# ┌───── minute (0-59)
# │ ┌───── hour (0-23)
# │ │ ┌───── day of month (1-31)
# │ │ │ ┌───── month (1-12)
# │ │ │ │ ┌───── day of week (0-6)
# * * * * * command

Examples

crontab -e
# Every day at 3am
0 3 * * * /scripts/backup.sh
# Every 5 minutes
*/5 * * * * /scripts/health.sh
# Monday at 9am
0 9 * * 1 /scripts/report.sh