Originally published at makraz.com.
npm -- Install packages globally without sudo on Linux / MacOS
By default npm installs packages locally in the folder nodes_modules within your projects.
But sometimes with need to install packages globally for command-line as example.
For Linux / MacOS users npm will ask you to run it with elevated privileges,
which mean use the command sudo to be able to install globally (sudo npm install -g <package>)
and this may create permission(s) issue(s) for many users.
However there is a way to install packages globally for a given user without sudo.
For that we will follow these steps:
1. Create a directory for global packages
mkdir "~/.npm_packages"
2. Tell npm where to store globally installed packages
npm config set prefix "~/.npm_packages"
3. Ensure npm will find installed binaries and man pages
Add the following to your .bashrc / .zshrc:
NPM_PACKAGES="~/.npm_packages"
export PATH="$PATH:$NPM_PACKAGES/bin"
# Preserve MANPATH if you already defined it somewhere in your config.
# Otherwise, fall back to `manpath` so we can inherit from `/etc/manpath`.
export MANPATH="${MANPATH-$(manpath)}:$NPM_PACKAGES/share/man"
NOTE: If you are running macOS, the .bashrc file may not yet exist, and the terminal will be obtaining its environment parameters from another file, such as .profile or .bash_profile. These files also reside in the user's home folder. In this case, simply adding the following line to them will instruct Terminal to also load the .bashrc file:
source ~/.bashrc
See also: npm's documentation on "Fixing npm permissions".
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