How do I remove environment variables in Linux?

How do I remove environment variables in Linux?

You can remove environment variables in Linux using the unset command. For example, to remove a variable named MY_VAR, you would use unset MY_VAR.

Can I remove multiple variables at once?

Yes, you can remove multiple variables by listing them in the unset command, like this: unset VAR1 VAR2 VAR3.

Will this change be permanent?

No, using unset only removes the variable for the current session. To make it permanent, you need to remove it from your shell configuration files like .bashrc or .bash_profile.

How do I check if a variable is removed?

You can check if a variable is removed by using the echo command. For example, echo $MY_VAR should return nothing if it has been successfully removed.