You are now in the directory "shells".
Here are the one-line descriptions for each items in this directory:
bash-1.14.7: The GNU Borne Again Shell. bash-2.02.1: The GNU Borne Again Shell. es-0.9b1: An extensible shell, derived from plan9's rc pdksh-5.2.13: The Public Domain Korn Shell. scsh-0.5.1: A Unix shell embedded into Scheme, with access to all Posix calls tcsh-6.08.00: An extended C-shell with many useful features. zsh-3.0.5: The Z shell.