💾 Archived View for envs.net › ~neovoid › notes › timers.md captured on 2024-08-18 at 19:06:24.

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# systemd timers

- timers replacement to cronjobs

## how to set up

- create a script you want to run
nvim ~/dailyscript.sh

!/usr/bin/env bash

printf "Daily Script ran at $(date)"

exit 0


- make it executable
`chmod +x ~/dailyscript.sh`

- Create systemd service unit file
`nvim /etc/systemd/system/dailyexecutethis.service`
in case of rootless user specific service:
`nvim ~/.config/systemd/user/dailyexecutethis.service

[Unit]

Description=runs this daily.

[Service]

Type=simple

ExecStart=/home/user/dailyscript.sh

[Install]

WantedBy=default.target

give execute permission:
`chmod 755 dailyscript.sh`

- Create timer unit file
`nvim /etc/systemd/system/dailycommand.timer`
in case of rootless user specific service:
`nvim ~/.config/systemd/user/dailycommand.timer

[Unit]

Description=runs at daily

[Timer]

OnBootSec=5min

OnCalendar=*:0/14

Unit=dailyexecutethis.service

[Install]

WantedBy=default.target


give execute permision:
`chmod 755 dailycommand.timer`

- reload daemon
systemctl daemon-reload

- start service
systemctl start dailycommand.timer


If you want to keep this around after a reboot:

systemctl enable dailycommand.timer

run even when you arent logged in:
`loginctl enable-linger username`