es is an extensible shell with higher-order functions.
The language was derived from the Plan 9 shell, rc, and was influenced by functional programming languages, such as Scheme, and the Tcl embeddable programming language.
This is free and open source software.
Key Features
- First class functions.
- Lexical scope.
- Exceptions.
- Rich return values (i.e., functions can return values other than just numbers).
- Extensibility comes from the ability to modify and extend the shell’s builtin services, such as path searching and redirection. Like the Plan 9 shell rc, it is great for both interactive use and for scripting, particularly since its quoting rules are much less baroque than the C or Bourne shells.
Website: wryun.github.io/es-shell
Support: GitHub Code Repository
Developer: Paul Haahr, Byron Rakitzis, Soren Dayton, James Haggerty
License: Public domain
es is written in C. Learn C with our recommended free books and free tutorials.
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