🚀Fast and simple Node.js version manager, built in native ReasonML
Using Homebrew (OSX)
brew install Schniz/tap/fnm
This is a custom tap I'm maintaining, and will be used until fnm will move to the official one.
Using a script
fish shells, there's an automatic installation script:
curl -fsSL https://github.com/Schniz/fnm/raw/master/.ci/install.sh | bash
fnm is almost the same as installing it. To prevent duplication in your shell config file add
--skip-shell to install command.
Set a custom directory for fnm to be installed. The default is
Skip appending shell specific loader to shell config file, based on the current user shell, defined in
$SHELL. e.g. for Bash,
$HOME/.zshrc for Zsh. For Fish -
MacOS installations using the installation script are deprecated in favor of the Homebrew formula, but this forces the script to install using it anyway.
curl -fsSL https://github.com/Schniz/fnm/raw/master/.ci/install.sh | bash -s -- --install-dir "./.fnm" --skip-shell
Download the latest release binary for your system
Make it available globally on
Add the following line to your
eval "$(fnm env --multi)"
If you are using fish shell, add this line to your
fnm env --multi | source
You can always use
fnm --help to read the docs:
fnm install [VERSION]
[VERSION]. If no version provided, it will install the version specified in the
.nvmrc file located in the current working directory.
fnm use [VERSION]
[VERSION] as the current Node version. If no version provided, it will activate the version specified in the
.node-version file located in the current working directory.
Display currenty activated Node version.
Lists the installed Node versions.
Lists the Node versions available to download remotely.
fnm alias [VERSION] [NAME]
Aliases a Node version to a given name.
fnm default [VERSION]
Aliases a Node version as default. Uses
fnm alias underneath.
fnm env [--multi] [--shell=fish|bash|zsh] [--node-dist-mirror=URI] [--use-on-cd] [--fnm-dir=DIR] [--log-level=quiet|error|all]
Prints the required shell commands in order to configure your shell, Bash compliant by default.
--multiwill output the multishell support, allowing a different current Node version per shell
--shell=fishwill output the Fish-compliant version. Omitting it and
fnmwill try to infer the current shell based on the process tree
--node-dist-mirror="https://npm.taobao.org/dist"will use the Chinese mirror of Node.js
--use-on-cdwill also output a script that will automatically change the node version if a
.node-versionfile is found
--fnm-dir="/tmp/fnm"will install and use versions in
fnm use --install
- Linux: Replace
tarwith a statically linked library too (for ungzip + untar)
- Windows Support? @ulrikstrid has worked hard to make it compile on Windows, but it will probably need to have different code paths and logic. We can probably make another program and share feature tests with it, instead of relying on Windows for this very-unixy binary.
npm install -g esy git clone https://github.com/Schniz/fnm.git cd fnm/ esy install esy bootstrap esy build
After building the project, you can run the main binary that is produced.
esy x fnm.exe
# Runs some smoke-unity test esy test # Runs the feature tests feature_tests/run.sh