Shell
Lessons filed under Shell.
Shell Shell scripting basics Turn a string of typed commands into a script you can run again and again.
Shell Processes and jobs Find what is running, stop it cleanly, and keep long tasks in the background.
Shell Environment variables and PATH The values your shell remembers for you, and how PATH decides what runs.
Shell Scheduling work with cron Let the phone run your commands on a timer, even while you sleep.