Script to shutdown XP clients

Shell Programming and Scripting
1

My staff seem to have a habit of leaving thier PCs on over night so I need to write a short script to shutdown any XP clients logged into the local samba domain that I can run as a cron job at a set time.

I can list the connected clients and their IP addresses with:

$ smbstatus -b

Samba version 3.4.9
PID     Username      Group         Machine
-------------------------------------------------------------------
5190      user1     __USERS__     machine1  (10.0.0.10)
26799     user2    __USERS__     machine2  (10.0.0.6)
4173      user3        __USERS__     machine3   (10.0.0.11)

And I can shutdown individual clients with:

$ net rpc SHUTDOWN -C "shutting down" -f -I 10.0.0.6 -U adminuser%password

What I need the code to do is parse the result of the smbstatus command and pass the IP addresses to the net rpc command for as main IP addresses found.

Thanks

2 
smbstatus -b | awk -F"[()]" '{ print $2 }' | while read IPADDRESS
do
        echo "IP address is $IPADDRESS"
done
3

Thanks Corona;
So my script will look like:

#!/bin/bash
smbstatus -b | awk -F"[()]" '{ print $2 }' | while read IPADDRESS 
do
    net rpc SHUTDOWN -C "shutting down" -f -I $IPADDRESS -U adminuser%password
done

Will this loop for as many IP addresses found or just the first one?

Thanks

4

It ought to loop through all of them.

I'd try what I actually posted first, before you get too ahead of yourself. If your version of awk doesn't support regexes in -F it may not work.

5

OK, here's the output:

~$ smbstatus -b | awk -F"[()]" '{ print $2 }' | while read IPADDRESS
> do
>         echo "IP address is $IPADDRESS"
> done
IP address is
IP address is
IP address is
IP address is
IP address is 10.0.0.10
IP address is 10.0.0.11

I guess I need to start on the 5th line of the output from smbstatus -b command? I am using ubuntu10.04

6

I think I can fix that:

smbstatus -b | awk -F"[()]" '$2 { print $2 }' | while read IPADDRESS
do
        echo "IP address is $IPADDRESS"
done

That should make awk only print lines when $2 (the second token) isn't blank.

1 Like
7

Great thanks, will try the whole script later when we are closed!
:slight_smile: