If you want to find all the filename of a particular directory, you can use 'opendir' and 'readdir' function. For eg. 
opendir(DIR, "/tmp") || die "can't opendir $!";
while (my $file = readdir(DIR)) {
  next unless (-f "/tmp/$file");
  print $file."\n";
}
closedir DIR;

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If you want check a particular file name, you can use the '-e' option. For eg. 
my $fname = "/tmp/test.txt"; 
print $fname if(-e $fname);

[download]

In reply to Re: How to extract the filenames in an array by lamp
in thread How to extract the filenames in an array by Anonymous Monk

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