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Full Discussion: logoff ghost user
Top Forums UNIX for Dummies Questions & Answers logoff ghost user Post 4370 by mod on Tuesday 24th of July 2001 03:56:10 PM
Old 07-24-2001
when you type in who you'll see your username and the terminal you're using ... eg:

admin2 ttyp1
admin2 ttyp3

with a second command "who am i" you can find out the terminal you re using in the moment:
admin2 ttyp3 ....

so you know that ttyp1 was the terminal from before ... search for processes running on that terminal:
ps -ft ttyp3

then you can kill all processes running under this terminal.

BUT: I can be that who is still showing you logged in ... never found out when and why this information is not leaving

BUT #2: If there are no processes runnning it makes no difference if who is showing you logged in or not.
The only point which could be important is that you lose one number from the number of maximal ttys.
 

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MESG(1) 						    BSD General Commands Manual 						   MESG(1)

NAME
mesg -- display (do not display) messages from other users SYNOPSIS
mesg [n | y] DESCRIPTION
The mesg utility is invoked by a user to control write access others have to a terminal device. Write access is allowed by default, and pro- grams such as talk(1) and write(1) may display messages on the terminal. The first terminal device in the sequence of devices associated with standard input, standard output and standard error is affected. The following options are available: n Disallow messages. y Permit messages to be displayed. If no arguments are given, mesg displays the present message status to the standard output. EXIT STATUS
The mesg utility exits with one of the following values: 0 Messages are allowed. 1 Messages are not allowed. >1 An error has occurred. EXAMPLES
Disallow messages from other users to the current terminal: mesg n Allow messages from other users to ttyp1 (assuming you are also logged in on that terminal): mesg y </dev/ttyp1 COMPATIBILITY
Previous versions of the mesg utility wrote the message status to the standard error output and affected the terminal attached to standard error without first trying the standard input or output devices. SEE ALSO
biff(1), talk(1), wall(1), write(1) STANDARDS
The mesg utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A mesg command appeared in Version 1 AT&T UNIX. BSD
May 5, 2002 BSD
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