If you're working in a Linux environment, chances are you've encountered environment variables—even if you didn’t realize it at the time. They quietly power much of what goes on behind the scenes in ...

Jack Wallen introduces you to Linux environment variables. What are they and how are they set and unset? How many times have you installed something on Linux, only to find out that you need to set ...

Ever wondered how you get the same terminal experience every time you open a new terminal session in Linux? The terminal pulls the configuration file and sets the environment according to the values ...

It used to be that to use Linux you needed to immediately familiarize yourself with the command line. Desktop environments like GNOME and KDE have made using Linux much easier for beginners. You could ...

The environment variable is a pair of keys and values stored within the system and can be accessed by an application from the shell or sub-shell. You can set environmental variables for your programs, ...

Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you. A lot of important values are ...