Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
The issue is that Perl's internal representation of a file is 32-bit. So when Perl tries to seek to a particular location of a very large file, well Perl doesn't understand what position 5_003_904_123 is.

There are two solutions. One is to compile a new version of Perl that does understand how to handle large files. The other is to keep Perl from trying to seek. The easiest way to do the other is for Perl to read from a pipe, not a filehandle. That can be done by writing your script so that it reads from STDIN, or by converting your opens so that they look kind of like this:

open(FILE, "cat $file |") or die "Cannot cat '$file': $!";

In reply to Re (tilly) 1: processing large files by tilly
in thread processing large files by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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 all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others scrutinizing the Monastery: (3)
    As of 2018-02-24 21:54 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      When it is dark outside I am happiest to see ...














      Results (311 votes). Check out past polls.

      Notices?