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

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
i thought what was needed was to (A) delete matching lines in file...and (B) write the matching lines to another file. If instead you could read the file and produce two output files, one file for the matching lines, and one file for the rest (unmatched lines), then the objective can be achieved with a slight modification to matija code like so:
open(OUTPUT,">matchingfile.txt")||die; open(OUTPUT2,">nonmatchingfile.txt")||die; while (<>) { chomp; if(/what you want to match/) { print OUTPUT $_ . "\n"; } else { print OUTPUT2 $_ . "\n"; } print OUTPUT $_ # note no semicolon here... unless /whatever condition matches the patterns you want/; } close(OUTPUT)|| die "Could not close $!\n"; close(OUTPUT2)|| die "Could not close $!\n";
...and run the prog like this: perl prog.pl <yourinputfile

In reply to Re: Re: doing a search and replace on a large file by aquarium
in thread doing a search and replace on a large file 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!
  • 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 lurking in the Monastery: (11)
    As of 2014-11-23 20:03 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My preferred Perl binaries come from:














      Results (134 votes), past polls