Thanks Eric. Those are what I was going to use before I had the thought that someone might know of an already built function I could use rather than me taking the IP and netmask apart, applying those, and reassembling the IPrange. I suppose I've already wasted more time than I would have saved. :) On Thu, Oct 27, 2011 at 10:28 AM, Eric Shubert wrote: > On 10/26/2011 09:49 PM, Dazed_75 wrote: > >> 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 >> >> > http://tldp.org/LDP/abs/html/**ops.html > See "bitwise operators" about half way down the page. I think that's what > you're looking for. > > -- > -Eric 'shubes' > > > ------------------------------**--------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.**phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.**us/mailman/listinfo/plug-**discuss > -- 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