To count the number of files in mydir you could use: 
#!/usr/bin/perl
use strict;
use warnings;

my $dirname = "/mydir";

opendir ( DIR, $dirname ) || die "Error in opening dir $dirname\n";
my $count;
while ( (my $filename = readdir(DIR)) ) {
  next if $filename =~ /^\.{1,2}$/; # skip . and ..
  $count++;
}
closedir(DIR);

print "$count files live in '$dirname'\n";

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Update: a sample mail sending code.

Have a nice day, j

In reply to Re: count files in a directory by reisinge
in thread count files in a directory by mahesnkl

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