On Fri, 30 Jul 1999, Theo Brinkman wrote:
> Ok, you guys are getting a bit over my head at this point. I'm very
> much a newbie at scripting stuff, so some examples would be nice.
>
> Here's the script as it stands:
> - -
> #!/bin/sh
> # Shutdown on Ctrl+Alt+Delete based on User.
>
> if [ id -u == 0 ]; then #if user is administrator
> halt
> else
> logout
> fi
> - -
>
> I've got a few questions about it.
>
> 1. Might a check against 'id -g' work better? (In case you have more
> than one login in the 'root' group)
>
> 2. I'm not familiar enough with gawk to do any scripting with it yet,
> anybody feel like taking a crack at either of the two gawk related
> suggestions?
>
>
> I love an educational process. Thanks guys.
>
> - Theo
Uhh, no not really.
-=-=
#!/bin/bash
DEBUG=1
if [ "$DEBUG"x = "1"x ]; then
TEST="logger -is "
else
TEST=""
fi
# Shutdown on Ctrl+Alt+Delete based on UID
IAM=`id -u`
if [ "$DEBUG"x = "1"x ]; then
$TEST "$IAM"
fi
if [ "IAM"x = "0"x ]; then
$TEST "halt " #Is root
else
$TEST "logout" #Not root
fi
> Axalon wrote:
> >
> > On Fri, 30 Jul 1999, Andy Goth wrote:
> >
> > > > > How about creating a quick script '/etc/threefingersalute', like the one
> > > > > below:
> > > > > - -
> > > > > if [ $USERNAME = "ROOT" ]; then
> > > >
> > > > $USER $USERNAME or $LOGNAME, bash manpages will give you info on what each
> > > > is, the "ROOT" should be "root" it's case sensitive. This might work, but
> > > > without double checking i'm pretty sure it'll be a problem that init runs
> > > > as root and this does not actualy run on the current console when you
> > > > call it with.
> > >
> > > It doesn't have to be root. If you wanted to, you could change root's
> > > name to something else by hacking the /etc/passwd file. The superuser
> > > (usually root) is the one with the user id of 0. You could write a GAWK
> > > program that would scan for the line with the user id of 0 and print the
> > > corresponding username (and you would capture the output and compare it
> > > to $USERNAME).
> > >
> > > Hmm. Maybe root isn't the only user who wants to shut down the system
> > > when he presses Ctrl+Alt+Del. Try comparing the $USERNAME against the
> > > names in shutdown.allow (a la a GAWK script). Would that work, guys?
> > >
> >
> > why not just compare 'id -u' with zero then?
>
