zsh src a69b879c56194ec9ea8b9b6eb19578660bf7578f755b1773223e0b7d6918bd80 A shell designed for interactive use The zsh is a shell designed for interactive use, and it is also a powerful scripting language. Many of the useful features of bash, ksh, and tcsh were incorporated into zsh. It can match files by file extension without running an external program, share command history with any shell, and more. http://zsh.sourceforge.net