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Old 07-11-2006, 08:34 PM   #1
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Question User Id

Is user ID person who is in the current system?

fahrisal@linux:~> who am i
fahrisal pts/1 2006-07-12 08:22

Is "fahrisal" a user ID?

how to identify whether the particular user has logged in (using shell script)?
Old 07-11-2006, 08:39 PM   #2
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It's a name, not an id. The uid is a numerical value.

To retrieve the name there's several possibilities.
a) the one you already listed `who am i`
b) echo $LOGNAME
c) `id` which will give you pretty much all you need to
   know about the user you're currently running the program 
   id as ... :} (in terms of id and groups, that is).

Old 07-11-2006, 08:51 PM   #3
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So, could u gimme the example of UID in terminal program!!
Old 07-11-2006, 09:13 PM   #4
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check out 'man id', as Tinkster suggested.
Old 07-11-2006, 09:48 PM   #5
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twilli@ubuntu:~$ id
uid=1000(twilli) gid=1000(twilli) groups=4(adm)1000(twilli)


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