Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
You seem to be opening the "NEW" file handle after you've been trying to write to it. Trying opening "NEW" before the "for" loop.

(Also, it's better to do it like this:

use strict; my $find = "2"; open( NEW, ">", "new.txt" ) or die "..." open( FILE, "<", "high_fanout.txt") or die "..." while (<FILE>) { print NEW if ( /$find/ ); }
(updated to "use strict" and add "my" for the one variable)

In reply to Re: Perl script to find particular string and save those lines in another file? by graff
in thread Perl script to find particular string and save those lines in another file? by sumathigokul

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
    Domain Nodelet?
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this?Last hourOther CB clients
    Other Users?
    Others wandering the Monastery: (4)
    As of 2024-07-25 03:27 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      No recent polls found

      Notices?
      erzuuli‥ 🛈The London Perl and Raku Workshop takes place on 26th Oct 2024. If your company depends on Perl, please consider sponsoring and/or attending.