In the below code, I am trying to read directory and put all directory names into the text file. Here's a catch. When I try to count and read lines in the generated text file it's not working. But, if I try to parse a text file which is having such information it's working. Please help me to understand where it's going wrong.

use strict;
use warnings;
use Cwd;
my $cwd = getcwd();

#inputs#

my $dir  = "D:\\Temp";
my $fff;
my @dir = ();
my $contilog = "$cwd"."\\input.txt";

open(LOG,">",$contilog) || die "Cannot create log file ....";

opendir (DIR,$dir);
@dir=readdir(DIR);
closedir(DIR);
@dir = sort(@dir);

foreach $fff (@dir){    
    write_log("$fff");
}
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here my code is not working

my $input = "$contilog";
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If I uncommment below line and run its working

#my $input = "$cwd"."\\input1.txt";
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open my $fh, '<', $input or die "unable to open file: $!";

# read it line by line with while, using the $. variable to 
# show the line number (instead of your own counter).

while( <$fh> ) {
    print "$_\n";  # LINE NO: LINE
    }

print "$contilog\n";
print "$input\n";
print "Total lines was $.\n";


sub write_log{
    print LOG @_;
    print LOG "\n";
}

sub trim($)
{
    my $string = shift;
    $string =~ s/^\s+//;
    $string =~ s/\s+$//;
    return $string;
}
[download]

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