Hi, I barely have any idea about perl or programming I am trying to learn cause I need to... could you please explain to me each line of this code? 


my ($fin, $dt, $vard );
my %anc = ();
my %cnt = ();
my @myfiles =();
my @all = ();

@myfiles=<A*> or die "No files to open A\* for reading. $!";

foreach $fin (@myfiles) { 

##my $fin="A20100222.1700-1715_GWLD1E_1.xml";
open INP, "$fin" or die "Cannot open $fin for read :$!";
$fin =~ (/^A(\d{8}).(\d{4})/);
my $dt = "$1" . ":" . "$2";
#print "$dt\n";
while (<INP>)  {
    if (/^<moid>.*=(\d+)</) {
    $anc{$1} += 1;    
    }
    elsif (/^<mt>(.+)</) {
    $cnt{$1} += 1;    
    }    
    elsif (/^<\/md>$/) {
    last;
    }
}
close (INP);
}

open(OUT, ">>all_announc_cnt.txt") or die "Cannot open all_announc_cnt
+.txt file for writting :$!";

foreach $vard (sort {$a <=> $b} (keys(%anc))) {
print  OUT "$vard:$anc{$vard}\n";
}
print OUT "\n";
foreach $vard (sort (keys(%cnt))) {
print OUT "$vard:$cnt{$vard}\n";
#push (@all, "$vard:$anc{$vard}");
}

close (OUT);

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In reply to Please Explain Code by costas1

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