Let's say you have installed the Sails package locally (without the -g or --global) flag into your present working directory. The npm list command without the -g or --global flag should show that Sails is installed locally.

~]# npm list
root@ /root
sails@1.4.4

The npm uninstall command without the -g or --global flag can be used to uninstall a local package. In this example, Sails in the present working directory will be uninstalled.

npm uninstall sails

Similarly, the -g or --global flag can be used to uninstall packages that were installed using the -g or --global flag.

npm uninstall sails --global