Environment Variables

For environment variables, when you don't use them often, it's not always easy to remember the commands.

To display your PATH:

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echo $PATH

To display all environment variables:

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env

To add something to your PATH:

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PATH=$PATH:/path/to/add

To add a new environment variable:

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MYVAR=/toto
export $MYVAR

Check with the env command and it works! :-)