usage: passgen.py <operation>
operations:
-e, --easy Generate easy password (6 char.)
-m, --medium Generate medium password (10 char.)
-h, --hard Generate hard password (16 char.)
--custom=X Generate password with X characters
--letters-only=X Generate password using only letters
--pin=X Generate PIN-code
--help Show this message
note:
X - amount of characters (int), default=4