We will discuss a basic example on how to execute shell script during a boot time on systemd Linux. There may be various reasons why you might want to execute shell script during Linux startup-like for example to start a particular custom service, check disk space, create a backup, etc. In this post, we are going to discuss Run a script as a Service.
assume that we have a script called, test.sh . we are going to Run this script as a Service. first of all lets make this script executable:
$ chmod a+x test.sh
let’s create a config file called test.service. we have to place this script in /etc/systemd/system/
[Unit] Description=test service
To setup the service:
$ sudo systemctl start
test.service $ sudo systemctl stop
Enabling and Disabling Services
The above commands are useful for starting or stopping commands during the current session. To tell
systemd to start services automatically at boot, you must enable them.
To start a service at boot, use the
$ sudo systemctl enable test.service
This will create a symbolic link from the system’s copy of the service file into the location on disk where
systemd looks for autostart files.
To disable the service from starting automatically, you can type:
$ sudo systemctl disable test.service
This will remove the symbolic link that indicated that the service should be started automatically.
Keep in mind that enabling a service does not start it in the current session. If you wish to start the service and enable it at boot, you will have to issue both the