25 usual Linux commands for the black terminal

There are a lot of commands available in a Linux terminal and it would be madness to try to learn them all but thanks to graphical desktop environments, you won’t have to. Just out of curiosity, you can run a simple command like this and see how many executables are available in the /usr/bin and /usr/sbin directories. This won’t be the exact number of commands available in Linux, but it’s close:

{ ls -1 /usr/bin ; ls -1 /usr/sbin/ ; } | wc -l

There are, however, some commands you need to be familiar with, just in case something happens and you don’t have access to the graphical environment. Let’s see a few of them.