Beginner’s Guide to the Linux `sum` Command: Tips and Examples

As you start spending more and more time working on the Linux command line, you tend to learn utilities that aren’t very frequently used. Once such tool is sum, which only offers two features: display checksum and block count for input files. In this short tutorial, we will quickly discuss the basics of sum using some easy to understand examples.

Beginner’s Guide to Using the ‘users’ Command in Linux (with Examples)

Sometimes, while working on the Linux command line, you might want to quickly check which all users are currently logged in to the system. Well, there’s a built-in Linux command line utility that lets you do this easily. The tool in question is ‘users’, and in this tutorial, we will discuss the basics of it using some easy to understand examples.