Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

How do I sort a file with IP Addresses and another text column?

( #88295=categorized question: print w/ replies, xml ) Need Help??
Contributed by arv on Jun 14, 2001 at 08:35 UTC
Q&A  > sorting


Description:

The format of the file is like this:
1.2.3.4,1.2.3.255,USA
2.3.4.0,2.3.4.25,USA
124.2.3.0,124.2.3.255,Argentina
I need to sort the file based on IP Address, country wise
How can I do this?

Answer: How do I sort a file with IP Addresses and another text column
contributed by tadman

use Socket qw [inet_aton]; sub squish { my($ip_lo,$ip_hi,$name) = split (//,$_[0]); return $name.inet_aton($ip_lo).inet_aton($ip_hi); } @sorted = sort { squish($a) cmp squish($b) } @unsorted;
The inet_aton function returns four bytes, the value of the IP address in network order, which sorts properly using an ASCII sort. The Socket module is standard with Perl.
Answer: How do I sort a file with IP Addresses and another text column
contributed by I0

print map{sprintf(("%d.%d.%d.%d,"x2)."%s\n",(split/,/)[1..8,0])} sort map{sprintf"%s".",%3d"x8,(split/\W/)[8,0..7]} <DATA> __DATA__ 1.2.3.4,1.2.3.255,USA 2.3.4.0,2.3.4.25,USA 124.2.3.0,124.2.3.255,Argentina

Please (register and) log in if you wish to add an answer



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (3)
    As of 2014-07-14 05:40 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      When choosing user names for websites, I prefer to use:








      Results (255 votes), past polls