They need to know how to unpack the file and they also need to know to run your magic script of commands after the unpack. However, you can easily create a shell ... you execute it, and you ...

Understanding and manipulating file permissions using commands like stat and chmod are essential for Linux ... execute bit ...

Bash allows you to work with custom file descriptors beyond the standard 0 (stdin), 1 (stdout), and 2 (stderr). You can also separate stdout and stderr cleanly: ...