murex

> This is an area where most open-source developers have avoided, as it's a "solved" problem, but it really isn't. I've found the complete opposite to be the case. This is one area where there are hundreds of different shells out there as it seems a "cool" thing to try since it's basically just an extension of writing your own language. Most never go beyond pet projects though. If you're curious about Go shells, I'm writing one too[1]. It's also alpha but you can already write some reasonably complex scripts in it since it supports message passing, network sockets and background processes. It's definitely not fast though. Fast enough for what I need it to do but there's plenty of room for performance tuning once in beta. [1] https://github.com/lmorg/murex

I don't know anything about PTYs either, since my shell is mostly a batch program like Perl right now. I'm viewing it first from a programming language perspective. As mentioned, I'm deferring to GNU readline for interactive features. I'd be interested in what problems you had with PTYs and what module you used? Are PTYs standardized by POSIX? It feels like you should be able to write a shell against only POSIX APIs (and ANSI C). I'd also be interested to see your shell. There are a bunch of alternative shells and POSIX shell implementations here: https://github.com/oilshell/oil/wiki/ExternalResources EDIT: I saw the sibling comment linking to https://github.com/lmorg/murex. Taking a look! A few months ago I started a thread with the authors of elvish, oh, mash, and NGS shells to exchange ideas. (elvish and oh are also written in G

Please excuse the self promotion but I'm also writing a Unix shell in Go. It's not designed to be a drop in replacement for Bash (ie it follows a few Bash-isms but is essentially my own bespoke scripting language) however it does spawn processes in their own PTY and support interactive commands such as vi and top so it does work as a proper $SHELL. It's still very much alpha but at a stage where I'm ready for feedback. https://github.com/lmorg/murex

I'm working on a shell scripting language that, like Tisp, is rooted in functional and concurrency paradigms while still offering some degree of backwards compatibility with traditional shells like Bash. It's very immature at the moment but the repo is below if anyone else is curious: https://github.com/lmorg/murex I'm not suggesting my level of coding is comparable with the others mentioned though. Murex was created to scratch an itch rather than delusions of thinking I could write a powerful next gen programming language. I intend murex to be more of a REPL shell than something one would use to write scalable applications.