> Tim Bolz wrote,
>>Is there a log file when I started X and when I quit X? I would like
>>to know how long I was on and other user on the system. I know in
>>bash you can do who but that tells who is online at that time and how
>>long they have been on. If there isn't a command to say who is on X
>>or how long someone has been online. Sometimes it seems like I've
>>been on a short time and 4 hours have passed. Is there a time online
>>for the launcher panel? If not it would be a good thing. I know
>>there is a program which locks the screen for a time so you can take a
>>break. I would like a log to say. Timothy logged in at 9:30 am
>>Msy31,2009 and logged off at 11:30pm May31,2009. A list like this
>>would be useful I'm sure perl or python could do the job.
>
> There is an X log file (/var/log/Xorg.0.log), but it's not very useful for
> this purpose, since it doesn't record times.
>
> Fortunately that's not the only option. Open up a terminal window, and
> type this:
>
> last -10
>
> This shows the ten most recent logins on your machine (most recent at the
> top), along with the logout time if they're not still logged in, and the
> total time at the end in parentheses. It's designed to record logins on
> the text console (or Xterm window), but in some distributions it also
> records X sessions.
>
> For example, my system is configured to boot straight into X, and to
> record X sessions for "last". Here's what I get when I type "last -10":
>
> nparker pts/1 :0.0 Sun May 31 22:12 still logged
> in
> nparker pts/0 :0.0 Sun May 31 21:17 still logged
> in
> nparker :0 Sun May 31 21:17 still logged
> in
> reboot system boot 2.6.26.2 Sun May 31 21:17
> (01:11)
> nparker pts/0 :0.0 Sun May 31 16:06 - 18:48
> (02:41)
> nparker :0 Sun May 31 16:06 - 18:48
> (02:42)
> reboot system boot 2.6.26.2 Sun May 31 16:05
> (02:43)
> nparker pts/0 :0.0 Sat May 30 20:12 - 00:03
> (03:50)
> nparker :0 Sat May 30 20:12 - 00:03
> (03:51)
> reboot system boot 2.6.26.2 Sat May 30 20:11
> (03:51)
>
> wtmp begins Fri May 1 00:25:41 2009
>
> The top three rows are my current session--the top two rows are Xterm
> windows, and the third row is my current X session. The sixth row (and
> all rows below it that have ":0" in the second column) is the one with the
> information you're interested in--it shows that I logged in at 4:06 PM
> this afternoon, and logged out at 6:48 PM, for a total login time of two
> hours and 42 minutes.
>
> Whether or not your system records X sessions for "last" might depend on
> what desktop environment you're using. KDE's login window ("kdm") does
> it (unless you manually add the line "UseSessReg=false" to its
> configuration file), but I don't know about Gnome's login window ("gdm").
>
> By the way, if you leave off the "-10", and just type "last", it will show
> you ALL the logins since it first started keeping track. Depending on
> how your system is configured, this could be a LONG list...I recommend
> piping it through "|more" or "|less".
>
> (The login/logout record is kept in the file /var/log/wtmp. Alas, it's a
> binary file, which is why there are special commands like "last" for
> viewing it.)
>
> - Neil Parker
gdm also does this. However I only see one entry today. I power
down every night. So I guess /var/log/wtmp is cleared at boot.
--
Allen Brown http://brown.armoredpenguin.com/~abrown/
Success is how you bounce on the bottom. --- General George Patton
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