Just some thoughts to this topic. Did no testing or benchmarking. So all of this could be nonsense ;o)

How many entries are read? Maybe it is a speedup if you grep for plain files when reading from the directory (so you have less entries in @a which are checked afterwards). This maybe only makes sense, if there are much more directories than files.

sub find_hash_core {
  my $dir = './';

  opendir my $dirh, $dir or die "$dir: $!\n";
  # if you need the current workdir, see Cwd how to retrieve that and 
+restore it later
  chdir $dir;
  my @files = grep { -f $_ } readdir $dirh;

  for ( @files ) {
    if ( m/1234yourhashvalue/ ) {
      print "found hash";
}
[download]

You could even check that hash value inside the grep:

my @files = grep { -f $_ && m/1234yourhashvalue/ } readdir $dirh;
[download]

Did you try glob() instead of readir? Don't know if there is a big difference between those implementations...

chdir $dir;
my @files = glob( "*.1234yourhashvalue" );
[download]

Did you try the linux file find command yet?

my @files = qx{ find $dir -maxdepth 1 -type f -name "*.1234yourhashval
+ue" };
[download]

I think for a more detailed answer, please give more information... Otherwise it's up to you to find a solution...

Update: fixed file/find typo

---

In reply to Re: Quickly Find Files with Wildcard? by linuxer
in thread Quickly Find Files with Wildcard? by expresspotato

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