System Scripting

Why a Python automation script's entire interface to cron, CI, and the shell is a small set of Unix primitives - argv, environment, stdio, exit codes, and signals - and what that means for every other page in this section.

Structuring a robust automation script.

`pathlib`, globbing, and safe writes.

Running commands and capturing output safely.

`schedule`, APScheduler, and system cron.

Polling, pagination, and callbacks.

Regex, streaming, and structured extraction.

Scripts you can trust unattended.