netmask in a script

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Author: Dazed_75
Date:  
To: Main PLUG discussion list
Subject: netmask in a script
I would like to apply a netmask to an arbitrary IP in a bash/dash script
(e.g. apply 255.255.255.0 to 173.10.3.155 to get 173.10.3.0). Is there any
easy way to do that without taking the IP apart, doing 4 operations and
reassembling the results?

--
Dazed_75 a.k.a. Larry

The spirit of resistance to government is so valuable on certain occasions,
that I wish it always to be kept alive.
- Thomas Jefferson
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