Fork of the es shell based on the rc command interpreter Formula was removed
Last versions were

Revision: 1

kes requires the following formula to be installed:
readline 7.0.3_1 Library for command-line editing

Recent formula history

ilovezfs kes: delete
ilovezfs kes: revision for readline
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Thierry Moisan kes: conflicts with es.

Formula code at GitHub