Okay, I have a directory with a bunch of files. What I want to do is open the directory, and for each file whose name has BLAH in it, I want do do something to that file. What I have now is doing something to every file in the directory. 
opendir(DIR, "$dir") || die "cant open dir.\n";
while (defined(my $file = readdir DIR)
  {
  do something;
  }
closedir(DIR);

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How can I narrow $file to only files with BLAH in the name?

In reply to How to pattern match filenames in readdir? by nkpgmartin

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