Re: to run a "interactive" scritp before shutting down the system

[Nate Duehr <nate@natetech.com>]

On Dec 7, 2006, at 4:51 AM, Godofredo Fdez. Requena wrote:

> El Jueves 07 Diciembre 2006 11:51, Grzegorz escribió:
> > did you consider creating init script, which would be executed at
> > switching to runlevels 0 (poweroff) and 6 (reboot)???
> > see `man update-rc.d` and /etc/init.d/skeleton (sample script)
> > kde has graphical manager to init scripts: ksysv
>
> OK, I have already tested this option but it has two "problems":
> 	
> 	1.- I only want that a "specific user" of the system runs the  
> script, if I
> 	put this script in runlevel0 every user of the system should "talk  
> with the
> 	script".

Check the environment for what user is calling the script, from  
inside the script, and die if it's not the "authorized" user.

if [ `/usr/bin/whoami` != "bob" ] ; then
echo This program must be run as user *bob*!
exit 1
fi


> 	2.- The script have to be executed by "this specific user" not by  
> "root" to
> 	avoid security problems.

sudo could handle this.

--
Nate Duehr
nate@natetech.com