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Copyfree Works

The license status of some works may be more complex than it at first appears here. In some cases, the license status listed for a given work is the "primary" license under which it is distributed. In several cases, parts of the work may be distributed under other licenses -- potentially even non-copyfree licenses.

Where present, descriptions are typically drawn from the claims of the projects themselves, and represent neither claims nor opinions of the Copyfree Initiative. Inclusion here (with or without description) does not constitute, and should not be inferred as, endorsement of any project.

Listings are presented for informational purposes only, and no representation is made as to the accuracy or utility of any information provided. Use at your own risk.

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Ficlpermalink

License Reference

Ficl is a programming language interpreter designed to be embedded into other systems as a command, macro, and development prototyping language. Ficl is an acronym for "Forth Inspired Command Language".

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Gauchepermalink

License Reference

Gauche is an R7RS Scheme implementation developed to be a handy script interpreter, which allows programmers and system administrators to write small to large scripts for their daily chores. Quick startup, built-in system interface, and native multilingual support are some of its goals.

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mkshpermalink

License Reference

The MirBSD Korn Shell (mksh) is an actively developed free implementation of the Korn Shell programming language and a successor to the Public Domain Korn Shell (pdksh).

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okshpermalink

License Reference

Portable OpenBSD ksh, or oksh, is based on pdksh.

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Onyxpermalink

License Reference

Onyx is a powerful stack-based, multi-threaded, interpreted, general purpose programming language similar to PostScript. It can be embedded as an extension language similarly to ficl (Forth), guile (scheme), librep (lisp dialect), s-lang, Lua, and Tcl.

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Papertpermalink

License Reference

Papert is a Logo implementation that runs in your browser.

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pdkshpermalink

License Reference

PD-ksh is a clone of the AT&T Korn shell. At the moment, it has most of the ksh88 features, not much of the ksh93 features, and a number of its own features.

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Sprypermalink

License Reference

Spry is a programming language primarily inspired by Smalltalk, Rebol, Lisp, JavaScript, Forth, and Nim.

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TinySchemepermalink

License Reference

TinyScheme is a lightweight Scheme interpreter that implements as large a subset of R5RS as was possible without getting very large and complicated. It is meant to be used as an embedded scripting interpreter for other programs. A lot of functionality in TinyScheme is included conditionally, to allow developers freedom in balancing features and footprint.

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Zshpermalink

License Reference

Zsh is a shell designed for interactive use, although it is also a powerful scripting language. Many of the useful features of bash, ksh, and tcsh were incorporated into zsh; many original features were added.

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