Practical Linux Command Line 2.0 - Make a Program Start on Boot with Systemd

This tutorial explains how to run scripts on boot using systemd, a powerful Linux utility. It covers creating a service file, configuring it with the correct syntax, and enabling it to run on boot. The video also demonstrates how to manage services using systemctl commands, including enabling, disabling, starting, and stopping services. The tutorial highlights the advantages of using systemd over Cron for boot scripts and provides practical examples of creating and managing a logs folder in the home directory.

What is a major limitation of using Cron for running scripts on boot?

• Cron is not available on all Linux systems.

• Cron is currently unstable for running scripts on boot.

• Cron requires root privileges to run any script.

• Cron does not support scheduling tasks at specific times.

What is the first step in creating a systemd service for running a command on boot?

• Writing a bash script for the command.

• Defining the command to be executed.

• Enabling the service using systemctl.

• Creating a symlink in the system directory.

In a systemd service file, what does the 'After' directive specify?

• The target after which the service should start.

• The user under which the service will run.

• The command to be executed by the service.

• The description of the service.

Which section of the systemd service file contains the command to be executed?

• [Service]

• [Unit]

• [Command]

• [Install]

How can you ensure a systemd service runs on boot?

• By adding the service to the Cron tab.

• By enabling the service with systemctl.

• By creating a symlink in the home directory.

• By using the 'start' command with systemctl.

What command would you use to stop a running systemd service without disabling it?

• systemctl halt

• systemctl disable

• systemctl stop

• systemctl remove

What is a potential use case for combining systemd and Cron?

• To run a script only once at a specific time.

• To create and manage user accounts automatically.

• To create a folder on boot and log data periodically.

• To install software packages automatically.