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lash: A shell with lambda
This project is in VERY INITIAL DEVELOPMENT STAGES. It doesn't really do anything useful yet. You have been warned.
lash is an attempt to design a Unix shell better suited for programming. It will include first-class structured data types such as arrays and dictionaries, blocks/closures, the ability to return arbitrary values from functions, and a cleaner syntax by replacing many pieces of special syntax in bash and POSIX sh with function calls (e.g., ${var,,*}
with $[lowercase $var]
), while keeping the traditional syntax for redirects, pipelines, variables, etc. mostly unchanged.
My blog (in Portuguese) has more information on the project.
lash is free software released under the GNU GPL v2+. See the file COPYING
for more information.
Installation
To compile lash, you will need CHICKEN Scheme (package chicken-bin
in Debian, Ubuntu, etc.) and a bunch of eggs (CHICKEN packages), which you can install by running:
chicken-install matchable
After that, just run make
in the project directory.