Hi Monks, who are always smarter than me. I'm trying to use the following code but rather than modify just one file to contain only unique lines I'm trying to modify many files in a directory.

I've successfully erased my data 5 times with some not so successful modifications so far so I'm seeking some wisdom. Here's the first bit of code:


#!/usr/bin/perl –w
 open(INF,"db.txt");
 @data = <INF>;
 close(INF);
 @sd = sort(@data);
 for(@sd){ push @out, $_ if (not @out) or ($out[-1] ne $_); };
open(OUTF,">outdb.txt");
 print OUTF;
 close(OUTF);

[download]

I'm pretty sure I'm overthinking it and the solution is very, very simple. Here's my code to find the files. See below. I just can't seem to get the two bits of code together properly.

#find the files I want to change
    
    my @files;
    find(
        sub {
            return unless -f;        # Files only
            return unless  /\.txt$/;  # Name must end in ".txt"
            push @files, $File::Find::name;
        },
        $directory
    );

[download]

In reply to parse multiple text files keep unique lines only 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, details, 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, summary, 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.