zsh:
zsh: Zsh is a UNIX command interpreter (shell) which of the standard shells
zsh: most resembles the Korn shell (ksh), although it is not completely
zsh: compatible. It includes enhancements of many types, notably in the
zsh: command-line editor, options for customizing its behavior, filename
zsh: globbing, features to make C-shell (csh) users feel more at home and
zsh: extra features drawn from tcsh (another 'custom' shell). Zsh was 
zsh: written by Paul Falstad.
zsh:
zsh: