id

Documentation

Overview

Synopsis:

id [-gGnu]

Description:

id displays the uid, guid and groups of the calling process

Options:

 		-g, --group     print only the effective group ID
		  -G, --groups    print all group IDs
		  -n, --name      print a name instead of a number, for -ugG
		  -u, --user      print only the effective user ID