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Your Linux computer relies on a lot of background tasks called services or daemons. On systemd-based distributions you have built-in commands that let you see which services are running, disabled, or failed.
Linux took its inspiration from Unix, but Linux isn’t Unix—although it’s definitely Unix-like. We will explain the major differences between these two famous operating systems.
The Best Linux Distributions Without systemd systemd: A Quick Recap Historically, the startup sequence in a Linux system was a replica of the initialization system that was introduced with System V Unix (SysV). The SysV init system adhered to the Unix philosophy. When people refer to the Unix philosophy, they usually reduce it to the well-known soundbite “Do one thing, and do it well.” And that thing was to start as the first process and then start other processes. It also culled zombies now and then. SysV init did its job well enough, but it didn’t do it too efficiently. It started ...