First you'll need to make sure your system has a c++ compiler. For OSX, XCode will work, for Ubuntu, the build-essential and libssl-dev packages work.
Note: nvm does not support Windows (see #284). Three alternatives exist, which are neither supported nor developed by us:
Note: nvm does not support Fish either (see #303). Alternatives exist, which are neither supported nor developed by us:
- nvm plugin for Oh My Fish, which makes nvm and its completions available in fish shell
- bass allows to use utilities written for Bash in fish shell
Note: We still have some problems with FreeBSD, because there is no pre-built binary from official for FreeBSD, and building from source may need patches, see the issue ticket:
Note: On OSX, if you do not have XCode installed and you do not wish to download the ~4.3GB file, you can install the Command Line Tools. You can check out this blog post on how to just that:
Homebrew installation is not supported.
To install or update nvm, you can use the install script using cURL:
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh | bash
or Wget:
wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh | bash
The script clones the nvm repository to ~/.nvm and adds the source line to your profile (~/.bash_profile, ~/.zshrc or ~/.profile).
You can customize the install source, directory and profile using the NVM_SOURCE, NVM_DIR, and PROFILE variables.
Eg: curl ... | NVM_DIR="path/to/nvm" bash
NB. The installer can use git, curl, or wget to download nvm, whatever is available.
For manual install create a folder somewhere in your filesystem with the nvm.sh file inside it. I put mine in ~/.nvm.
Or if you have git installed, then just clone it, and check out the latest version:
git clone https://github.com/creationix/nvm.git ~/.nvm && cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`
To activate nvm, you need to source it from your shell:
. ~/.nvm/nvm.sh
Add these lines to your ~/.bashrc, ~/.profile, or ~/.zshrc file to have it automatically sourced upon login:
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm
For manual upgrade with git, change to the $NVM_DIR, pull down the latest changes, and check out the latest version:
cd "$NVM_DIR" && git pull origin master && git checkout `git describe --abbrev=0 --tags`
After upgrading, don't forget to activate the new version:
. "$NVM_DIR/nvm.sh"
You can create an .nvmrc file containing version number in the project root directory (or any parent directory).
nvm use, nvm install, nvm exec, nvm run, and nvm which will all respect an .nvmrc file when a version is not supplied.
To download, compile, and install the latest v5.0.x release of node, do this:
nvm install 5.0
And then in any new shell just use the installed version:
nvm use 5.0
Or you can just run it:
nvm run 5.0 --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 5.0
In place of a version pointer like "0.10" or "5.0" or "4.2.1", you can use the following special default aliases with nvm install, nvm use, nvm run, nvm exec, nvm which, etc:
node: this installs the latest version ofnodeiojs: this installs the latest version ofio.jsstable: this alias is deprecated, and only truly applies tonodev0.12and earlier. Currently, this is an alias fornode.unstable: this alias points tonodev0.11- the last "unstable" node release, since post-1.0, all node versions are stable. (in semver, versions communicate breakage, not stability).
If you want to install a new version of Node.js and migrate npm packages from a previous version:
nvm install node --reinstall-packages-from=node
This will first use "nvm version node" to identify the current version you're migrating packages from. Then it resolves the new version to install from the remote server and installs it. Lastly, it runs "nvm reinstall-packages" to reinstall the npm packages from your prior version of Node to the new one.
You can also install and migrate npm packages from specific versions of Node like this:
nvm install v5.0 --reinstall-packages-from=4.2
nvm install v4.2 --reinstall-packages-from=iojs
If you want to install io.js:
nvm install iojs
If you want to install a new version of io.js and migrate npm packages from a previous version:
nvm install iojs --reinstall-packages-from=iojs
The same guidelines mentioned for migrating npm packages in Node.js are applicable to io.js.
If you want to use the system-installed version of node, you can use the special default alias "system":
nvm use system
nvm run system --version
If you want to see what versions are installed:
nvm ls
If you want to see what versions are available to install:
nvm ls-remote
To restore your PATH, you can deactivate it.
nvm deactivate
To set a default Node version to be used in any new shell, use the alias 'default':
nvm alias default node
To use a mirror of the node binaries, set $NVM_NODEJS_ORG_MIRROR:
export NVM_NODEJS_ORG_MIRROR=https://nodejs.org/dist
nvm install node
NVM_NODEJS_ORG_MIRROR=https://nodejs.org/dist nvm install 4.2
To use a mirror of the iojs binaries, set $NVM_IOJS_ORG_MIRROR:
export NVM_IOJS_ORG_MIRROR=https://iojs.org/dist
nvm install iojs-v1.0.3
NVM_IOJS_ORG_MIRROR=https://iojs.org/dist nvm install iojs-v1.0.3
nvm use will not, by default, create a "current" symlink. Set $NVM_SYMLINK_CURRENT to "true" to enable this behavior, which is sometimes useful for IDEs.
nvm is released under the MIT license.
Copyright (C) 2010-2016 Tim Caswell
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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.
To activate, you need to source bash_completion:
[[ -r $NVM_DIR/bash_completion ]] && . $NVM_DIR/bash_completion
Put the above sourcing line just below the sourcing line for NVM in your profile (.bashrc, .bash_profile).
nvm
$ nvm [tab][tab]
alias deactivate install ls run unload
clear-cache exec list ls-remote unalias use
current help list-remote reinstall-packages uninstall version
nvm alias
$ nvm alias [tab][tab]
default
$ nvm alias my_alias [tab][tab]
v0.6.21 v0.8.26 v0.10.28
nvm use
$ nvm use [tab][tab]
my_alias default v0.6.21 v0.8.26 v0.10.28
nvm uninstall
$ nvm uninstall [tab][tab]
my_alias default v0.6.21 v0.8.26 v0.10.28
nvm will encounter some issues if you have some non-default settings set. (see #606)
The following are known to cause issues:
Inside ~/.npmrc
prefix='some/path'
Environment Variables:
$NPM_CONFIG_PREFIX
$PREFIX
Shell settings:
set -e
If you try to install a node version and the installation fails, be sure to delete the node downloads from src (~/.nvm/src/) or you might get an error when trying to reinstall them again or you might get an error like the following:
curl: (33) HTTP server doesn't seem to support byte ranges. Cannot resume.
Where's my 'sudo node'? Check out this link:
On Arch Linux and other systems using python3 by default, before running install you need to
export PYTHON=python2
After the v0.8.6 release of node, nvm tries to install from binary packages. But in some systems, the official binary packages don't work due to incompatibility of shared libs. In such cases, use -s option to force install from source:
nvm install -s 0.8.6
If setting the default alias does not establish the node version in new shells (i.e. nvm current yields system), ensure that the system's node PATH is set before the nvm.sh source line in your shell profile (see #658)