Reset IRB Console

Question

How does one go about saying goodbye to all constants, objects, and the like defined in an irb session to return to a clean slate? By "in", I mean without manipulating subsessions.

Answer 1

Type

exec($0)

in your irb console session.

Answer 2

i am using fedora 16, exec $0 do not work for me. but i found the the way below:

CTRL+L or system("clear") or system("reset")