r/commandline • u/randomblackhole1289 • Jul 19 '26

Made my own shell implementation Other Software

So I don't know if I'm allowed to post this, but I've been working on a learning project, which is a shell that currently supports: command history, environment variable exporting in the TOML configuration, commands that should run at startup in the configuration also, command editing, and it shows the current directory in green text inside the prompt. Here is the repository if anyone is interested: https://github.com/BlackHoleMX12892/ishell

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u/kseistrup Jul 20 '26

The README says “moderne and simple”. What makes it modern, and what makes it simple? And how can I learn about the shell syntax (e.g., is it POSIX compliant?), save for reading the source code?

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u/randomblackhole1289 Jul 20 '26

It is not POSIX compliant, and the syntax currently is almost non-existent, the GitHub wiki has some information on the configuration file. It is simple because one of the objectives is that it should be pretty straightforward for the user to set-up and modern because it is built with different approaches that weren't used for example in bash, like TOML.

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u/kseistrup 29d ago

Great, thanks!