Windows ports of many of the popular GNU software tools, including the BASH and tcsh shells.

Scheme Shell, broad-spectrum system programming environment for Unix, embedded in R5RS Scheme 48. Supports concurrent system programming, sophisticated I/O and automatic garbage collection for process resources.

A high-level examination of the Unix shell.

Development page for psh, a native Perl shell for Windows 95/98/2000 and POSIX operating systems. Documentation and mailing list archives available online, with source and binaries available for download.

A Unix environment for the VMS operating system, including a port of the bash shell.

Ksh and Csh for Win32 environments, as well as a full development environment.

Program to automatically build configuration files for BASH and C shells.

Plain-text FAQ with newsgroup links.

Open content tutorials and other information on bash, ksh, and zsh.

Unix-like command line interface for the Macintosh, modeled on csh.