rust_cmd_lib is a Rust library designed to make it easier to write shell-script–style tasks in Rust, blending the power and safety of Rust with the expressiveness of shell pipelines. It provides macros and utilities that let you spawn external processes, redirect input/output, and pipe commands together, all without invoking a shell. You can write something like run_cmd!(ls -l | grep foo > out.txt) in a more declarative style, rather than manually wiring up file descriptors, handles, and...