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Full Discussion: How can i TRAP a user Logout action?
Top Forums Shell Programming and Scripting How can i TRAP a user Logout action? Post 303002121 by mohtashims on Friday 18th of August 2017 05:25:20 AM
Old 08-18-2017
RedHat How can i TRAP a user Logout action?
When the temp user logs in i see his session as below.
Code:
[root@techx ~]# who
root     pts/0        2017-08-18 08:32 (121.87.51.113)
temp     pts/1        2017-08-18 09:06 (121.87.51.113)
root     pts/2        2017-08-18 08:59 (121.87.51.113)

When he logs out by either firing exit command or closing the putty window or clicking disconnect on mRemote i see temp user session destroyed as below.

Code:
[root@techx ~]# who
root     pts/0        2017-08-18 08:32 (121.87.51.113)
root     pts/2        2017-08-18 08:59 (121.87.51.113)

This is what i m doing catch a user logout action.

Code:
more .bash_logout
# ~/.bash_logout
rm -f flag_login

and in the

Code:
more .bash_profile
#!/bin/bash
if [ -f flag_login ]
then
echo "You have switched your working SHELL"
else
touch flag_login
fi

This works fine when the user types exit command to logout of the session.

But when he logs out by closing the putty window or disconnect mRemote session to my L\Unix server the user session terminates but ~/.bash_logout is not triggered and thus flag_login file remains denoting the user is still on.

I do have the root privileges.

Can you please let me know how can i catch putty window close or mRemote disconnect the same way as i am catching the exit command to work ?
 

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LEARN ABOUT SUNOS

sulog

sulog(4)							   File Formats 							  sulog(4)

NAME

       sulog - su command log file

SYNOPSIS

       /var/adm/sulog

DESCRIPTION

       The  sulog file is a record of all attempts by users on the system  to execute the su(1M) command.  Each time  su(1M) is executed, an entry
       is added to the sulog file.

       Each entry in the sulog file is a single line of the form:

	      SU date time
	      result port user-newuser

       where

       date	       The month and date su(1M) was executed.	date is displayed in the form  mm/dd where  mm is the month number and dd  is  the
		       day number in the month.

       time	       The  time   su(1M) was executed. time is displayed in the form  HH/MM where  HH is the hour number (24 hour system) and	MM
		       is the minute number.

       result	       The result of the  su(1M) command.  A ` + ' sign is displayed in this field if the su attempt was successful; otherwise	 a
		       ` - ' sign is displayed.

       port	       The name of the terminal device from which  su(1M) was executed.

       user	       The user id of the user executing the  su(1M) command.

       newuser	       The user id being switched to with  su(1M).

EXAMPLES

       Example 1: A sample sulog file.

       Here is a sample sulog file:

       SU 02/25 09:29 + console root-sys
       SU 02/25 09:32 + pts/3 user1-root
       SU 03/02 08:03 + pts/5 user1-root
       SU 03/03 08:19 + pts/5 user1-root
       SU 03/09 14:24 - pts/5 guest3-root
       SU 03/09 14:24 - pts/5 guest3-root
       SU 03/14 08:31 + pts/4 user1-root

FILES

       /var/adm/sulog	       su log file

       /etc/default/su	       contains the default location of  sulog

SEE ALSO

       su(1M)

SunOS 5.10							    6 Jun 1994								  sulog(4)
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