Sandy lone wrote:
I need to translate an IP addr with its mask from this form:

192.168.1.30/255.255.255.0

to this one:

192.168.1.30/24

One way to do it:

$ perl -le'

use Socket;
my $stuff = "192.168.1.30/255.255.255.0";
my ( $ip, $mask ) = split /\//, $stuff;
print "$ip/" . unpack "%32b*", inet_aton $mask;
'
192.168.1.30/24



John
--
Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order.                            -- Larry Wall

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