[cle]

"grep" and "cut" are not Bash, they are programs and have dramatically different feature sets between distributions and OSes (grep on MacOS is very different from grep on a modern Linux distribution using GNU Coreutils, and there are many incompatibilities). Many scripts that work on Linux won't work on Mac because of this.

With Bash, your best bet for portability is to run scripts in a Docker container. If you want portable code, you have to bundle your dependencies--there's no free lunch here, including Bash.