Hi , I am new to perl scripting. I have 2 new input files, file1 and file2. I have to retrieve second field of each record from first file and check if it is existing in second file, file2. I have read file2 contents and stored it in an array. Please find my file2(npn.txt) contents below:

11111111 10001781 11111222
File1 contents:
abc,,,, abc,10001781,,, abc,10001782,,, abd,10001783,,,
Based on above files, what i need is to print records if second field is not matching.Hence my record should contain:
abc,,,, abc,10001781,,, abc,10001782,,, abd,10001783,,,
But it prints:
abc,10001781,,, abc,10001782,,, abd,10001783,,,
Can anyone please guide me what is the bug in thi. Please find my code snippet below:

... open (info, "<npn.txt"); chomp (@contents = (<info>)); close info; $record = $_."~"; @flds = split(/\,/, $record); if (grep !/^$flds[1]/, @contents) { print $record; } ' >hi5res.txt

In reply to grep in Perl 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.