On Fri, Dec 27, 2002 at 11:43:52AM +0530, Ramprasad wrote: > Paul Johnson wrote: > >On Thu, Dec 26, 2002 at 04:39:30PM -0500, Kipp, James wrote: > > > >>Happy Hollidays > >> > >>I want to bitwize AND 2 IP adr strings, not sure of how to pack() them to > >>be > >>able to AND them. before i start playing with pack,sprintf,socket,etc.. I > >>was wondering if someone already had a way. > > > > > >$ perl -e 'printf "%vd\n", 192.168.1.1 & 255.255.0.0' > >192.168.0.0 > > > that is great I had used ipcalc etc for doing such a simple thing > > But sir can u tell me how is "%vd" interpreted in printf
The "v" specifies that the argument is a v-string. The "d" says to use decimal output. Compare: $ perl -e 'printf "%vx\n", 192.168.1.1 & 255.255.0.0' c0.a8.0.0 $ perl -e 'printf "%vb\n", 192.168.1.1 & 255.255.0.0' 11000000.10101000.0.0 perldoc sprintf -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
