Using the command find instead of File::Find is not a bad thing per se. But as you do it, you will fork a chmod command per matching file. Since you are concerned by performance issue, let us say it may be better to optimize by bundling as much files as possible in an exec command by using xargs:

find /the/dir -name \*.dat -not -perm 644 | xargs chmod 644

To be on the safe side and to deal correctly with weird file names (like windoze filenames with blanks), it is even better to use the null character as a file separator:

find /the/dir -name \*.dat -not -perm 644 -print0 | xargs -0 chmod 644

-- stefp


In reply to Re: Re: Limitations to chmod and performance by stefp
in thread Limitations to chmod and performance by stefan k

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.