A bit more Perlish:

#!/bin/perl

use strict;
use warnings;
use File::Path qw(make_path);

my $txt = "txt";
my @files = glob("*$txt");

foreach my $filename (@files) {
  my ($seq, $nr, $mol, $dir, $step, $type) = 
     (split /[._]/, $filename)[1..6];
  print "name of file: $filename \n\n";
  make_path("~/folder1/$mol/$dir");
}

[download]

Update: corrected typo (thanks poj!). Updated again to use glob instead of ls.

Dum Spiro Spero

In reply to Re: mkdir in loop - overwrite danger? by GotToBTru
in thread mkdir in loop - overwrite danger? by fasoli

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