It is the first thing you can try to bypass the problem temporarily. If one or more users are already logged in, you must shut down your PC again. You can restart your computer and then shut it down.

Linux is a multi-user operating system. What does that mean? Like all good operating systems, you can have multiple user accounts on one machine. You can also have more than one user logged in at once ...

A few Linux commands offer different ways to see which users are logging into your Linux servers, how often they log in, and how long they’ve been active or idle. If you want to get a report to see ...