Environment variables on Unix systems — how to understand, ... You can display a single variable with a simple echo command. ... security engineer and Linux journalist for most of her 30-year ...

Environment variables are very helpful to use in scripts and are sometimes necessary to be manually set when installing certain software. Start using them now to make Linux and the Linux command ...

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 ...

When you use the which command on Linux, it checks the directories listed in the PATH environment variable. It then shows the location of the first matching executable file it finds.

A lot of important values are stored on Linux systems in what we call “variables,” but there are actually several types of variables and some interesting commands that can help you work with them.

So, how do you set an environment variable in Linux? Let me show you. First, log into your Linux desktop or server and open a terminal window. Let’s set MY_SITE to techrepublic.com.

Identify your server as the target display for X clients that are run on the remote host. You can do this in one of two ways: Set the DISPLAY environment variable. In the Bourne and Korn shells, you ...

If you ssh into the machine with x11 forwarding enabled (ssh -X), the DISPLAY environment variable gets set. This is normal and shouldn't be an issue but there appears to be an issue with the zimbra ...