Re: script or other suggestion

On 22Nov2007 15:35, chloe K <chloekcy2000@xxxxxxxx> wrote:
| I have ip list in my network
| I need to check which ip is unused
| what is better solution?
|
| Write the ping script or use other command
|
| eg:
|
| for i in ip.txt
| ping -c 3 $i

That would be:

for i in `cat ip.txt`
do ping -c 3 $i || { echo "IP $i is not in use."; break; }
done

Of course, if a machine happens to be down/off, if will look
like its IP is not in use...

You could possibly do something clever with nmap or "ping -b",
but your approach is simple and effective.
--
Cameron Simpson <cs@xxxxxxxxxx> DoD#743
http://www.cskk.ezoshosting.com/cs/

Getting a SCSI chain working is perfectly simple if you remember that there
must be exactly three terminations: one on one end of the cable, one on the
far end, and the goat, terminated over the SCSI chain with a silver-handled
knife whilst burning *black* candles. - Anthony DeBoer

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