Learn how run levels are configured and how you can change the run level interactively or modify what services are available. On Linux systems, run levels are operational levels that describe the ...

Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...

The Linux command line is a text interface to your computer. Also known as shell, terminal, console, command prompts and many others, is a computer program intended to interpret commands. Allows users ...

One of the most crucial pieces of any UNIX-like operating system is the init dæmon process. In Linux, this process is started by the kernel, and it's the first userspace process to spawn and the last ...