How do I export an environment variable in Linux?

The terminal is closed.Is it possible to permanently add this so that this variable value always exists with a particular user?

It can be added to your shell configuration file.In /etc/environment, you can find $HOME/.bashrc.You have to exit the terminal, create a new one, and log out of the server to reflect the changes after you add these lines.

This file will be run when you open a terminal window.If you want to have a permanent environment variable in all of your terminal windows, you have to add the following line at the end of this file.

You have to put the command line at the end of the file to have your environment variable in your OS.

You have to change this file if you want your environment variable in every window or application.The following command should be added at the end of the file.

To apply these changes, you have to restart your computer.Bashrc and profile can be applied by these commands.

A simple script has been written for these procedures.Setting the name and value of your environment variable is all you have to do.

You can add the line to your profile.The variables in the profile are global and active for the current user.Each bash session starts with the.bashrc pulled.

There are persistent variables that reference variables in the system.

Check this Ask Ubuntu answer for more information on #2.The recommendation of #3 may have security concerns in the real world.

I need to run some builds with 6 and others with 7 because I have Java 7 and Java 6 installed.I need to change JAVA_HOME so that it picks up what I want.I did the following.

How-to-set-environment-variables-in-linux is a source.