NPM global directory
C:\Users\xxx\AppData\Roaming\npm
Command Alias
If I have no access to modify system path, when I have some packages installed, I might use alias command. I have installed @angular/cli, in the way for using ng command.
$ alias ng='/c/Users/what_a_poor_user_with_no_access/AppData/Roaming/npm/ng'
List all global installed packages
$ npm list -g --depth=0
Windows Command Prompt
//get path environment
C:\Users\xxx>set path
//append items to path. This is only available on CURRENT cmd window.
C:\Users\xxx>set path=%path%;C:\MyEnvironmentDirectory
