To discard directories from your file list and keep only plain files: 
next unless -f $file;

[download]
Please also note that it is not the best to use for or foreach to read the lines of a file, because this implies making a copy of the full file into memory before starting to process it. If the file is very big, the program might just crash because of memory overflow. This is also likely to slow down things slightly, although I am not sure this will make a big or even noticeable difference. The better way to read a text file is to use the while loop operator, for example as follows: 
while (my $line = <$file>) {
     # ...
}

[download]
With the while statement, you are reading the file line by line, so that you only have one line in memory at any given time.

Je suis Charlie.

In reply to Re: Read files not subdirectories by Laurent_R
in thread Read files not subdirectories by wrkrbeee

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.