Tianyi822 / ru_shell

This is a shell tool written in Rust, intended only as a learning project and not for use in a production environment at this time.

Introduce

The REPL has already been implemented, with the ls and grep commands available. The process from the lexer, through the parser, to the executor, has all been successfully executed. Subsequent improvements will focus on the collection and handling of syntax errors, as well as the implementation of additional commands.