in reply to Reading password from STDIN without echoing
Please NOTE! this is a NOT recommended method of hiding passwords, but to answer your question, keep the password from being seen?
Look at Term::ReadKey
print "Enter pwd please :";
chomp (my $pwd = <>);
ReadMode ("original") ;
print "\nYou typed $pwd!\n";
Update: This has been tested on a Win32 platform.
Of all the things I've lost in my life, its my mind I miss the most.