List, Get, Set, and Unset Mac and Linux Environment Variables in Terminal
Published: Apr 11, 2021
Updated: Mar 23, 2022
Updated: Mar 23, 2022
Table of Contents
List All Environment Variables #
env
Get an Environment Variable #
Syntax:
echo ${<VAR_NAME>}
Usage:
echo ${MY_NAME}
Set an Environment Variable #
Syntax:
export <VAR_NAME>="<VAR_VALUE>"
Usage:
export MY_NAME="Jane Doe"
Persist on Mac:
Add export MY_NAME="Jane Doe" to your shell config file.
Restart your Terminal.
Persist on Linux:
Add export MY_NAME="Jane Doe" to your ~/.bashrc file.
Restart your Terminal.
Unset an Environment Variable #
Syntax:
unset <VAR_NAME>
Usage:
unset MY_NAME
Persist on Mac:
Add unset MY_NAME to your shell config file.
Restart your Terminal.
Persist on Linux:
Add unset MY_NAME to your ~/.bashrc file.
Restart your Terminal.