npm installs packages locally within your projects by default. You can also install packages globally (e.g. npm install -g <package>) (useful for command-line apps). However the downside of this is that you need to be root (or use sudo) to be able to install globally.
Here is a way to install packages globally for a given user.
mkdir "${HOME}/.npm-packages"NPM_PACKAGES="${HOME}/.npm-packages"prefix=${HOME}/.npm-packagesNODE_PATH="$NPM_PACKAGES/lib/node_modules:$NODE_PATH"PATH="$NPM_PACKAGES/bin:$PATH"
# Unset manpath so we can inherit from /etc/manpath via the `manpath`
# command
unset MANPATH # delete if you already modified MANPATH elsewhere in your config
MANPATH="$NPM_PACKAGES/share/man:$(manpath)"Check out npm-g_nosudo for doing the above steps automagically
NOTE: If you are running OS X, 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 ~/.bashrcSee also: npm's documentation on
"Fixing npm permissions".