Given that you have a specific target file (hence its inode and the number of links to that inode), then why not just use the normal unix "find" utility: 
use strict;

my ($dir,$file) = @ARGV;
my ($finode,$fnlinks) = (lstat($file))[1,3];

$/ = chr(0);
my @hardlinks = `find $dir -inum $finode -print0`;

chomp @hardlinks; # get rid of null-byte terminations

printf "found %d of %d links for %s (inode %d) in %s:\n",
         scalar @hardlinks, $fnlinks, $file, $finode, $dir;

print join("\n",@hardlinks),"\n";

[download]
I haven't tried benchmarking that but based on prior experience, if you happen to be searching over any really large directory trees (thousands of files), I know that this approach will be at least 5 or 6 times faster than any solution involving File::Find. (I have posted at least three benchmarks on PM to prove this.)

It also seems a lot simpler. Since you're looking specifically for hard links (files with identical inodes), the issue of portability to non-unix systems is irrelevant.

The unix "find" command is the right tool for this job (and perl just makes it easier to use "find", which is worthwhile).

(update: simplified the "printf" statement a little; also should clarify that the "5 to 6 times faster" is in terms of wall-clock time to finish a given run.)

(another update: after simplifying the printf, I put the args in the right order so that the output is correct.)

In reply to Re: aborting File::Find::find by graff
in thread aborting File::Find::find by marvell

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