cron

Overview

cron is the standard Unix task scheduler. Define schedules with cron expressions (minute, hour, day, month, weekday) to run scripts automatically. Used for backups, log rotation, data sync, health checks, and any recurring task.

Instructions

Step 1: Crontab Basics

# Edit your crontab
crontab -e

# Format: minute hour day month weekday command
# ┌─── minute (0-59)
# │ ┌─── hour (0-23)
# │ │ ┌─── day of month (1-31)
# │ │ │ ┌─── month (1-12)