Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

Re: How to remove duplicate IPs

by jwkrahn (Monsignor)
on Aug 08, 2013 at 00:41 UTC ( #1048466=note: print w/replies, xml ) Need Help??

in reply to How to remove duplicate IPs

open (NMAP_DATA, "@ARGV") or die "Please type the filename. $!" ;

That should probably be:

open (NMAP_DATA, $ARGV[0]) or die "Please type the filename. $!" ;

But would be even better as:

open NMAP_DATA, '<', $ARGV[0] or die "Cannot open '$ARGV[0]' because: +$!";

my @ip_address = sort $1, "\n" if /($RE{net}{IPv4})/; print IP_DATA @ip_address if (!/^\s*$/);

Why are you sorting the two values $1 and "\n"?    Why are you using an array when you only need a scalar?

print IP_DATA "$1\n" if /($RE{net}{IPv4})/;

Replies are listed 'Best First'.
Re^2: How to remove duplicate IPs
by sinhass (Initiate) on Aug 08, 2013 at 03:15 UTC

    Hi jwkrahn , thanks for your advise. And frankly speaking I am learning perl so I have no clear idea yet.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1048466]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (3)
As of 2016-10-25 02:56 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (313 votes). Check out past polls.