[Blake]

This belongs in the beginners section.

[myth]

Your looking at bash scripting for this:

#!/bin/bash
ipstart=1  # start IP
ipstop=254  # stop IP
while [ $ipstart -le $ipstop ]
do
        ping -q -c 1 192.168.13.$ipstart
        ipstart=$((ipstart+1))
done

Sorry, but couldnt figure out how to reduce the amount of information....

Btw, i used google to figure all that out - thought it maybe something nice to know... Not sure why you didnt try....