Run a command at startup

Index

Lancer une commande au démarrage.

- via `rc.local`

# vi +'%s/^exit 0/$cmd\rexit 0/' +:wq /etc/rc.local (1)

1	Add your command before the `exit 0` in the `/etc/rc.local` file of your system.

# echo "@reboot $cmd" >> /etc/crontab  (1)

1	`crontab` can starts commands at startup with the special keyword `@reboot`. See `man 5 crontab`.

Create a /lib/systemd/system/$name.service file :

[Unit]
Description=My startup time service
[Service]
ExecStart=/path/to/sbin/startup-time.sh
[Install]
WantedBy=multi-user.target

# chmod u+x /path/to/sbin/startup-time.sh (1)
# systemctl start $name.service (2)
# systemctl enable $name.service (3)

1	Make the script en executable one
2	Start the service, it will execute the script once
3	Enable the service, to make it starting at each reboot

See man systemd.unit for more info.