Common Lisp shells under development:
- lish is a portable shell and REPL in pure CL, including debugger, and command line utilities. License: GPL3
- SHCL is a POSIX adhering shell in CL. License: Apache 2
For portable shell scripting with CL, you may consider using inferior-shell.
Non-Common-Lisp Lisp solutions also include LUSH (the Lisp Universal Shell) or SCSH (Scheme Shell), or using the emacs' eshell…
Unix system programming