nvm
Node Version Manager -POSIX-compliant bash script to manage multiple active node.js versions.
Installation
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash
Configuration
Now add these lines to your ~/.bashrc, ~/.profile, or ~/.zshrc file to have it automatically sourced upon login: (you may have to add to more than one of the above files)
$ vim ~/.bashrc
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion
Restart your shell so the path changes take effect.
exec $SHELL
Deeper Shell Integration
Automatically call nvm use
$ vim ~/.bashrc
cdnvm() {
command cd "$@";
nvm_path=$(nvm_find_up .nvmrc | tr -d '\n')
# If there are no .nvmrc file, use the default nvm version
if [[ ! $nvm_path = *[^[:space:]]* ]]; then
declare default_version;
default_version=$(nvm version default);
# If there is no default version, set it to `node`
# This will use the latest version on your machine
if [[ $default_version == "N/A" ]]; then
nvm alias default node;
default_version=$(nvm version default);
fi
# If the current version is not the default version, set it to use the default version
if [[ $(nvm current) != "$default_version" ]]; then
nvm use default;
fi
elif [[ -s $nvm_path/.nvmrc && -r $nvm_path/.nvmrc ]]; then
declare nvm_version
nvm_version=$(<"$nvm_path"/.nvmrc)
declare locally_resolved_nvm_version
# `nvm ls` will check all locally-available versions
# If there are multiple matching versions, take the latest one
# Remove the `->` and `*` characters and spaces
# `locally_resolved_nvm_version` will be `N/A` if no local versions are found
locally_resolved_nvm_version=$(nvm ls --no-colors "$nvm_version" | tail -1 | tr -d '\->*' | tr -d '[:space:]')
# If it is not already installed, install it
# `nvm install` will implicitly use the newly-installed version
if [[ "$locally_resolved_nvm_version" == "N/A" ]]; then
nvm install "$nvm_version";
elif [[ $(nvm current) != "$locally_resolved_nvm_version" ]]; then
nvm use "$nvm_version";
fi
fi
}
alias cd='cdnvm'
cd "$PWD"
Calling nvm use automatically in a directory with a .nvmrc file
# place this after nvm initialization!
$ vim ~/.zshrc
autoload -U add-zsh-hook
load-nvmrc() {
local node_version="$(nvm version)"
local nvmrc_path="$(nvm_find_nvmrc)"
if [ -n "$nvmrc_path" ]; then
local nvmrc_node_version=$(nvm version "$(cat "${nvmrc_path}")")
if [ "$nvmrc_node_version" = "N/A" ]; then
nvm install
elif [ "$nvmrc_node_version" != "$node_version" ]; then
nvm use
fi
elif [ "$node_version" != "$(nvm version default)" ]; then
echo "Reverting to nvm default version"
nvm use default
fi
}
add-zsh-hook chpwd load-nvmrc
load-nvmrc
Restart your shell so the path changes take effect.
exec $SHELL
Commands
Listing Versions.
nvm ls
To get the latest LTS version of node and migrate your existing installed packages.
nvm ls-remote --lts
To install a specific version of node.
nvm install v16.14.2
To get the latest LTS version of node and migrate your existing installed packages.
nvm install 'lts/*' --reinstall-packages-from=current
And then in any new shell just use the installed version.
nvm use v16.14.2
To set a default Node version to be used in any new shell.
nvm alias default v16.14.2
Uninstall node version.
nvm uninstall v16.14.2