Add New Path to PATH at Command Line Right Way

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The user path is the set of directories where command line tools are searched to run. For example, if you type “iostat” in the terminal, iostat will be executed from / usr / sbin because “/ usr / sbin” is part of your $ PATH. Accordingly, users who frequently use the command line may need to modify or add new paths to their terminal so that commands can be executed correctly.

It may now be obvious that modifying the PATH is aimed at more advanced users and developers who use the Terminal and spend a lot of time at the command line. Average Mac users don’t usually need to change, add, or otherwise tweak this in Mac OS X. Speaking of Mac OS X, while this is clearly Mac-centric, you can use the same trick to add a PATH to your shell in Linux as well, as in most other Unix flavors.

Before you start, you may want to see the existing $ PATH in case you mess up up, that way you can easily restore to it by exporting with the same commands. To check the current $ PATH just type: “echo $ PATH”

Add a directory to PATH

The easiest way to add a new path to $ PATH (the environment variable) is with the export command. In this example we add “~ / opt / bin” to the user PATH with export:

export PATH = $ PATH: ~ / opt / bin

You can run that directly from the command line and then check $ PATH with echo to show it has been added like this:

echo $ PATH

This should produce something like the following, note the newly added ~ / opt / bin folder at the end:

/ usr / bin: / bin: / usr / sbin: / sbin: / usr / local / bin: / Users / compsmag / opt / bin

Add a new PATH to $ PATH in Mac OS X Terminal

How to Add multiple paths to PATH

Just as multiple paths can be stored and strung together in $ PATH according to their search priority, you can also add new paths this way. We’ll use the same example as before, but this time we’ll add the ~ / dev / bin folder as well:

export PATH = $ PATH: ~ / opt / bin: ~ / dev / bin

Set PATH in Shell profile

Note that in order to preserve PATH changes, you’ll want to add them to ~ / .profile, .zshrc, or ~ / .bash_profile, depending on which shell you’re using. Use your favorite text editor to do that, be it nano, emacs or vim. If you’re getting complicated, it’s a good idea to add comments to the .profile to keep things easily scannable:

# Add opt bin and dev bin to PATH for funexport PATH = $ PATH: ~ / opt / bin: ~ / dev / bin

Bash is the default shell in many versions of Mac OS X, but zsh is the default shell in later modern releases, and of course there are other shells like sh, ksh, and tcsh that come with the Mac as well. Changing the Mac OS X shell is a very easy process with chsh or within Terminal and / or iTerm2 preferences.

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The time to complete the How to Add a New Path to PATH at Command Line the Right Way tutorial is 10+ minutes.

What are the supported Device?

Apple

What are the supported Operating system?

mac OS


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