# 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`