opendir only opens the directory for you, it does not change your current working directory. So you either need to do a chdir before doing any more tests on the files therein or prepend the directory name to the path.

Another possibility would be to use File::Find:

use File::Find;

find (\&change_sas,"/cdw/home_dir/s006258/CSPAM");

sub change_sas {
    my $filename=$_;
    if (-f $filename && $filename=~m/\.sas\z/) {
        chmod 0644,$filename;
        print "Found $filename, changing\n";
    }
}

[download]

Or the *NIX find utility.

find /cdw/home_dir/s006258/CSPAM -name '*.sas' -exec chmod 644 {} \;

Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -- Brian W. Kernighan

In reply to Re: recursive dir and file by tirwhan
in thread recursive dir and file by Fuism

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.