Tiny Tcl 6.8 is a rommable, minimal Tcl implementation for embedded applications. Derived from the venerable Tcl 6.7 release, Tiny Tcl 6.8 has a solid Tcl feature set, excluding newer capabilities of Tcl 7 and 8 such as the bytecode compiler, namespaces, sockets, and async event handling, among others. Excluding C library functions, Tiny Tcl compiles down to less than 60 Kbytes on most machines, far smaller than any Tcl 7 or Tcl 8 derivatives.
V6 Thompson Shell Port provides two ports of the original /bin/sh from Sixth Edition (V6) UNIX (circa 1975). osh is an enhanced port of the shell, and sh6 is an unenhanced port of the shell. This project also includes glob6, if, goto, and fd2 as external shell utilities. While they remain external for compatible use by sh6, these utilities are integrated into osh to improve shell performance.
CLEX is a file manager with a full-screen user interface written in C with the curses library. It displays directory contents (including file status details) and provides features like command history, filename insertion, or name completion in order to help the user to construct commands to be executed by the shell (there are no built-in commands). CLEX is easily configurable and all its features are explained in the on-line help.
The MirBSD Korn Shell (mksh) is an actively developed successor of pdksh (the Public Domain Korn Shell), aimed at producing a shell good for interactive use, but with the primary focus on scripting. It is intended to be portable to most *nix-like operating systems as long as they're not too obscure. mksh incorporates improvements from OpenBSD and Debian, as well as bugfixes and enhancements developed for the MirOS, FreeWRT, and MidnightBSD projects and Android. The emacs command line editing mode is UTF-8 capable, and Byte Order Marks are ignored in scripts. The shell supports large files, as well as all pdksh and some csh, AT&T ksh, zsh, and GNU bash features, is compatible with the Bourne shell and POSIX (within limits), has no limit on array sizes, and incorporates some other useful builtins and features. While being already fast and small (without losing functionality), flags to make it even smaller can be given at compile time. An interactive shell reads "~/.mkshrc" on startup.
fish, the friendly interactive shell is a shell that is focused on interactive use, discoverability, and user friendliness. The design goal of fish is to give the user a rich set of powerful features in a way that is easy to discover, remember, and use. fish features a user-friendly and powerful tab-completion, including descriptions of every completion, tab-completion of strings with wildcards, and many completions for specific commands. It also features an extensive and discoverable help system. A special help command gives access to all the fish documentation in your preferred Web browser. Other features include syntax highlighting with extensive error checking, support for the X clipboard, smart terminal handling based on terminfo, an easy to search, no duplicates history.