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Usefull for when you don't have nmap and need to find a missing host.
Pings all addresses from 10.1.1.1 to 10.1.1.254, modify for your subnet.
Timeout set to 1 sec for speed, if running over a slow connection you should raise that to avoid missing replies.
This will clean up the junk, leaving just the IP address:
for i in {1..254}; do ping -c 1 -W 1 10.1.1.$i | grep 'from' | cut -d' ' -f 4 | tr -d ':'; done
There are 11 alternatives - vote for the best!
This version combines the best of the other suggestions and adds these features:
1. It scans a /16 subnet
2. It is very fast by running the ping commands in the background, running them in parallel.
3. Does not use the "-W" option as that's not available in older ping versions (I needed this for OS X 10.5)
Not really an easier solution. But an example using && for (if last command returned 0). You can use || for (if last command returned other than 0)..
If you can do better, submit your command here.
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