Tip of the Week - Feb 21st 2012 - whoami

This is a new weekly post with a tip for Windows, OS X, Linux, iOS, Android... anything really that I hope could help others in their daily computing lives. This week's tip is a Windows tip. Ever wonder what permissions you have in your organization? What groups are you part of? What is my SID?

There is a nice command introduced back in the Windows XP days called whoami. First introduced as part of the support tools, and now part of the standard install of windows, this command can give you all the information about the currently logged on user.

If we just issue whoami in CMD, we will get this:

Nothing spectacular, but lets look at the flags to the command:
We can see there is a /ALL flag, lets see what happens when we run whoami /all
(Important SIDs are whited out)
We can see a whole bunch of information, like my username, my SID, domain group memberships and even my permissions.
So if you ever want a user to send you their information, you can make a batch script that has:
whoami /all > userinfo.txt
This will save this information into a text file that the user can send your way and you can see all their group information and make changes as necessary.