run_cmd uses macros so you can just type shell commands directly, but it does make empty strings disappear (""). I'd rather not split up arguments, but to each

run_cmd uses macros so you can just type shell commands directly, but it does make empty strings disappear (""). I'd rather not split up arguments, but to each their own. Either way, it's great to do some shell things to speed up coding, and Rust things to speed up the program safely.