[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvODE1MTU","title","Zero to Hero Bash","state","published","contactAuthorMethod","email","aboutText","

Zero to Hero Bash teaches you Bash the way you'd actually learn it on the job: by building one real program, one deliberate step at a time.

Over 10 chapters and 8 milestones, you'll build backup_docs.sh — a script that finds documents on a Windows file share and copies them safely to an external drive — while surviving everything that goes wrong in the real world: dead networks, unplugged drives, typo'd config files, and file names with spaces.

Every chapter follows one rule: no line of code without a story of the failure it prevents. Instead of \"this is best practice, just do it,\" you'll see the actual bug each safeguard exists to stop, then build the fix yourself.

By the end, you'll have:

- A working, ShellCheck-clean, test-covered backup tool you built yourself, line by line

- A Git history that mirrors a real 28-commit teaching repository, so you can compare your work commit-by-commit against a working answer key

- The habit of writing scripts that stop when something is wrong, instead of silently continuing

The book covers strict-mode fundamentals, logging, config file loading, CLI argument parsing with getopts, preflight connectivity checks, the array-as-command pattern for building shell-safe rsync commands, error traps, and a full Bats test suite — plus five appendices (glossary, header cheat sheet, ShellCheck reference, commit map, and notes for teachers running this as a course).

A companion GitHub repository with the finished, working code is included, so you can check your progress against real commits at every step.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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