You can use this ; 

my $dir = "/var/tmp/monk";
chdir("$dir") or die "$!";
opendir(BIN, $dir) or die "Can't open $dir: $!";

#Read Directory


readdir DIR; # reads .
readdir DIR; # reads ..
if (readdir DIR) { #now there should be a file or folder
  print "it's not empty";
}
else {
   print "it is empty";
}
close DIR;

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In reply to Re^2: run program until directory is not empty by zac_carl
in thread run program until directory is not empty by dipesh777

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