Hell

A shell (again...) written in Haskell.

Thanks to the superior language it's the better version of kjell.

Implemented

• ;-list
• &&-list
• ||-list
• Pipes
• Builtins (cd, exit, pwd)
• External commands
• Negation (!)
• Redirection

Notes

Redirections do not exactly parse according to the posix standard. cat a1<file is parsed as {cat a} 1< {file} in bash/zsh etc.
In hell cat a1<file is parsed as {cat a1} < {file}.

TODO

• Following build-your-own-shell for what to implement (currently at stage 2, act 1).

Implementation todos

• Perhaps an effect system to better encapsulate IO effects