Date: Tue, 11 Oct 2011 16:25:58 +0200 From: Damien Fleuriot <ml@my.gd> To: freebsd-questions@freebsd.org Subject: Re: User tasks in ~/.logout Message-ID: <4E9451F6.7020800@my.gd> In-Reply-To: <20111011155750.2f70109d.freebsd@edvax.de> References: <20111011155750.2f70109d.freebsd@edvax.de>
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On 10/11/11 3:57 PM, Polytropon wrote: > I have some users who I want to "schedule" a specific job > for which gets executed on their user account. For some > of them, it will be twice a day, for others just once a > month. It should happen at logout time. > > The intended mechanism to do so is ~/.logout, the C shell's > logout script. > > Example: The user quits his work (shell "exit" or ending > a custom program that is executed by the shell), > now the ~/.logout shoult be executed, e. g. copying his > current datasets to "immediate backup" (or other means of > processing). > > I assume I cannot use this approach when the user runs > his specific program _as_ the shell (per /etc/passwd), > but that's not a problem now, as it's easier to give > a regular shell and use ~/.login to "auto-exec" the > user-specific program). > > My question is: As users connect to the system per SSH, > how much time will the "at logout time" process have to > finish work, or does it work _any_ time after the user > has (1st) logged out and (2nd) terminated SSH connection > (e. g. disconnect from SSH CLI client or PuTTY)? > > Will such a ~/.logout job finish even if the user closes > his connection right after logout? > > And just in case a user does not properly log out (e. g. > closes PuTTY right from the open session, maybe from within > the program or shell he currently runs), will this cause > ~/.logout to be processed, or will it be a "stale connection"? > > I would suggest creating a dummy script that simply echoes the date to a file. Test your different scenarios, see if your file was written to correctly. If that works, insert a delay in your script, for example sleep 20.
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