What happens when you export in terminal?

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export makes a variable something that will be included in child process environments. It does not affect other already existing environments. In general there isn't a way to set a variable in one terminal and have it automatically appear in another terminal, the environment is established for each process on its own. 14 июн. 2015 г.

What does export command do in terminal?

The export command is a built-in utility of Linux Bash shell. It is used to ensure the environment variables and functions to be passed to child processes. It does not affect the existing environment variable. Environment variables are set when we open a new shell session.

Where does export in terminal go?

2 Answers. When you export a variable, it is not added to any file anywhere. The effect of export , as opposed to merely assigning a variable, is that of passing the variable into the environment of all of the shell's child processes.

What does export Do Bash?

Export is a command used in the bash shell to make use of variables and functions that are to be passed on further to all child processes. It works by including a variable in child process environments. This is done by keeping another environment.

What does export display do?

It tells X11 applications which screen they should run on. The format of the DISPLAY variable is hostname:display. For local displays, the hostname is often omitted. The reason this variable is needed is because you can have multiple X servers running locally, or you may wish to use a remote display.

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