Thanks for filling in those details, Corion. Now I can just skip to the crazy ideas: 

my $rand= md5_hash_hex( rand() . $$ . $x . "super secret" );
mkdir( "$x/$rand" );
if( -d "$y/$rand" ) {
    warn "$x == $y\n";
}
rmdir( "$x/$rand" );

[download]

I only created a subdirectory instead of a file because it makes for more concise Perl code. Or you could lock a file you find in $x and see if you hold the lock on that file in $y? (But that assumes that all of your file system exporting technologies convey lock information, which is not always the case, of course.) You could create a pipe in one... etc.

- tye        

In reply to Re^2: Finding out whether two directories are the same (insert) by tye
in thread Finding out whether two directories are the same by rovf

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.