Generate passwords with crypt and random salt

Here is a small perl script i found sometime ago to generate crypted passwords with random salt values

#!/usr/bin/perl

$plain=$ARGV[0]; ## Read the command line argument

if (!$plain){ ## No parameter pased
print "Usage: $0 plain_text_password\n";
exit;
}

## Use the Process id & time to generate the salt.
srand($$|time); # random seed
@saltchars=(a..z,A..Z,0..9,'.','/'); # valid salt chars
$salt=$saltchars[int(rand($#saltchars+1))]; # first random salt char
$salt.=$saltchars[int(rand($#saltchars+1))]; # second random salt char
$newuser = crypt ($newuser, $salt);

## Generate the encrypted password
$crypted=crypt ($plain, $salt);

print $crypted,"\n";