Hello, I am trying to resolve a looping issue which causes my script
to append the files 4x instead of once.

#!/usr/bin/perl
use strict;
use Data::Dumper;
use File::Glob ':glob';
    
my @dirs = glob("C:/Documents and Settings/mydir/Desktop/KOMP/*");
foreach my $maid_dir(@dirs){
    if (-d $maid_dir){ # directory check
        if ($maid_dir=~m%\d+\s[A-Z]%){ # match the dir name
            my $seq_dir = $maid_dir."/sequencing/";
            chdir ($maid_dir);
            #next if (-M $seq_dir > 1.0);
            chdir ($seq_dir);
            #print Dumper ($maid_dir, $seq_dir);
            opendir my $dh, "$seq_dir";
            if(-d $seq_dir){
                my @files = readdir $dh;
                for my $f(@files){
                    if($f=~ m%^(\d*)(HU.fa|HD.fa|Ltvec_small.FA|_fasta
+)$%){
                        my ($fa, $hu, $hd, $lt)= ($1."_fasta", $1."HU.
+fa", $1."HD.fa", $1."Ltvec_small.FA");
                        if(-e $fa){
                            open (my $out, ">>".$seq_dir."/".$fa) or d
+ie "Can't open $seq_dir/$fa for append: $!\n";
                            # Append the contents of the three files t
+o $fa
                            open my $hu_file, '<', $hu or die "Can't o
+pen $hu: $!\n";
                            while (my $line = <$hu_file>) {
                                print $out $line;
                            }
                            open my $hd_file, '<', $hd or die "Can't o
+pen $hd: $!\n";
                            while (my $line = <$hd_file>) {
                                print $out $line;
                            }
                            open my $lt_file, '<', $lt or die "Can't o
+pen $lt: $!\n";
                            while (my $line = <$lt_file>) {
                                print $out $line;
                            }
                            print $out, "\n";
                            #print Dumper($f);
                            close($out);
                            close($hu_file);
                            close($hd_file);
                            close($lt_file);
                        }
                    }
                }            
            }        
        }    
    }    
}
[download]

Any ideas?

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