Linux bash script to see what connected computers respond to ping -

Linux bash script to see what connected computers respond to ping

A great way when moving your equipment to a new location, new router/switch etc to help confirm what MAC has what IP:

 

for ip in `arp -na|awk '{print $2}'|sed s/\(//g|sed s/\)//g`; do
echo ping $ip
ping -c 1 -w 1 $ip > /dev/null
if [ "$?" == 0 ]; then
   echo "$ip UP"
fi

done


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