📦 nvm/ nvm-sh

Install & Update Script

To install or update nvm, you should run the [install script][2]. To do that, you may either download and run the script manually, or use the following cURL or Wget command:

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash

wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash

Running either of the above commands downloads a script and runs it. The script clones the nvm repository to ~/.nvm, and attempts to add the source lines from the snippet below to the correct profile file (~/.bashrc, ~/.bash_profile, ~/.zshrc, or ~/.profile). If you find the install script is updating the wrong profile file, set the $PROFILE env var to the profile file’s path, and then rerun the installation script.

<a id="profile_snippet"></a>

export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm

Additional Notes

• If the environment variable $XDG_CONFIG_HOME is present, it will place the nvm files there.</sub>

• You can add --no-use to the end of the above script to postpone using nvm until you manually use it:

export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" --no-use # This loads nvm, without auto-using the default version

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Usage

To download, compile, and install the latest release of node, do this:

nvm install node # "node" is an alias for the latest version

To install a specific version of node:

nvm install 14.7.0 # or 16.3.0, 12.22.1, etc

To set an alias:

nvm alias my_alias v14.4.0

Make sure that your alias does not contain any spaces or slashes.

The first version installed becomes the default. New shells will start with the default version of node (e.g., nvm alias default).

You can list available versions using ls-remote:

nvm ls-remote

And then in any new shell just use the installed version:

nvm use node

Or you can just run it:

nvm run node --version

Or, you can run any arbitrary command in a subshell with the desired version of node:

nvm exec 4.2 node --version

You can also get the path to the executable to where it was installed:

nvm which 12.22

In place of a version pointer like "14.7" or "16.3" or "12.22.1", you can use the following special default aliases with nvm install, nvm use, nvm run, nvm exec, nvm which, etc:

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Running Tests

Tests are written in [Urchin]. Install Urchin (and other dependencies) like so:

npm install

There are slow tests and fast tests. The slow tests do things like install node and check that the right versions are used. The fast tests fake this to test things like aliases and uninstalling. From the root of the nvm git repository, run the fast tests like this:

npm run test/fast

Run the slow tests like this:

npm run test/slow

Run all of the tests like this:

npm test

Nota bene: Avoid running nvm while the tests are running.