How to put phantomjs on $PATH
Putting phantomjs on the path will stop it downloading every time and therefore decrease the amount of time requiried to npm install.
1. Install phantomjs globally
npm install -g phantomjs
2. Edit the current users profile
micro ~/.profile
3. Add phantomjs to $PATH
At the bottom of this file the bottom add phantom js. The path is wherever global packages are install into.
export PATH=~/.npm-global/bin/phantomjs:$PATH
4. Reload the config
source ~/.profile
Alternatively close and open the terminal