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Jobs and Background Execution

crontab

Edits per-user cron schedules.

crontab installs, lists, or edits cron jobs for a user. Each line combines a time expression with a command.

Syntax
crontab [options]

Arguments explained

  • -e edits your crontab.
  • -l lists your crontab.
  • -r removes your crontab.
  • -u chooses a user when run as root.

Common examples

Edit your schedule
crontab -e

Opens your user crontab in an editor.

Run every day at 2:30
30 2 * * * /home/alex/bin/backup.sh

A crontab line for a daily scheduled script.

crontab Command
FieldDetails
Commandcrontab
CategoryJobs and Background Execution
Primary useEdits per-user cron schedules.
Syntaxcrontab [options]

Related articles

cron

Runs scheduled jobs through a background daemon.

systemctl

Controls systemd services and system state.

env

Prints or runs commands with an environment.