How do you export a variable?

Can you export a variable?

You can use the export command to make local variables global. To make your local shell variables global automatically, export them in your . profile file. Note: Variables can be exported down to child shells but not exported up to parent shells.

How do I export system variables?

To export a environment variable you run the export command while setting the variable. We can view a complete list of exported environment variables by running the export command without any arguments. To view all exported variables in the current shell you use the -p flag with export.

What does export a variable mean?

export makes the variable available to sub-processes. That is, export name=value. means that the variable name is available to any process you run from that shell process. If you want a process to make use of this variable, use export , and run the process from that shell.

Why do we export variables?

We use environment variables (with export) when we want to export the variables and make them available to the subsequent commands or processes. Normally we use this to share the environment with a child process: Configure the environment of the child process or shell.