$9 — instant download — commercial use license
Get the Production Bash Toolkit — $9 →Free snippets solve one problem at a time. Production servers need a baseline that ships together: backup integrity checks before the disk fills, health monitoring that fires one alert instead of five cron emails, SSL expiry warnings before customers hit certificate errors, and retention cleanup that defaults to dry-run so a typo does not wipe a log directory. The Production Bash Toolkit is that baseline — not a grab bag of unrelated files, but a cohesive operational system you copy to /opt/scripts on every new host before anything else goes live.
Built for Linux sysadmins, DevOps engineers, and solo operators who maintain real servers — VPS instances, bare metal, homelab boxes that actually send mail when something breaks. If you have copied snippets from blog posts and spent an afternoon debugging why they behave differently under cron, or why set -e silently skipped your error handler, this toolkit removes that rework. Every component shares the same conventions: strict mode, named thresholds, comments that explain why a line exists, and ShellCheck-clean output so your CI pipeline and pre-commit hooks do not fight the download.
What you get is two deliverables. A 52-page PDF field guide covers the failure modes that do not show up in man pages — why bash dies in cron with a different PATH, macOS vs Linux portability traps, quoting bugs that pass locally and explode in production, and how to handle secrets in CI without leaking them in process listings. The ZIP holds the runnable system: an interconnected set of operational scripts, a 30-function shared library, a copy-paste template for new work, worked examples, plus README and LICENSE files so you know exactly what you are allowed to deploy commercially.
backup.sh
tar.gz archives with sha256 sidecars, read-back integrity verification, retention rotation, and optional rsync offsite with retry. Runs before you discover the backup was hollow.
healthcheck.sh
One cron entry that checks disk, memory, load, services, and HTTP endpoints against your thresholds. One alert when something crosses a line — not five separate emails you learn to ignore.
cron-wrapper.sh
Wraps any command with a sane PATH, locale, working directory, lock file, timeout, and failure alert that attaches the log tail. Stops cron jobs from failing silently because the environment differs from your SSH session.
cleanup.sh
Retention cleanup that defaults to dry-run. You must pass --apply to delete anything — a mistyped path does not become an incident.
bashlib.sh
30-function shared library sourced by every script in the system. Leveled logging that survives cron redirection, error traps that name the failing line, retry with exponential backoff, single-instance locking, safe-delete guards, and a notify() function that pages you in production and stays quiet on your laptop.
template.sh
Strict mode, dry-run flag, --help, and argument parsing already wired in. Copy it, source bashlib.sh, fill in your logic. New internal tools inherit the same standards as the rest of the toolkit on day one.
README + LICENSE + examples
Deployment order, sourcing conventions, and license terms spelled out. Worked examples show how each script composes with bashlib.sh so you are not guessing which functions to call.
52-page field guide (PDF)
Five gotchas in set -e, why scripts die in cron, macOS vs Linux portability, quoting and word splitting, safe destructive operations, a step-by-step debugging playbook, and handling secrets in CI. Reference material you keep open while wiring the ZIP contents into your environment.
Bonus 10 (second ZIP)
Ten more scripts on the same bashlib.sh: cert-expiry.sh, wait-for-port.sh, retry-cmd.sh, preflight.sh, big-files.sh, find-dupes.sh, mirror-dir.sh (preview before it deletes), parallel-run.sh, open-ports.sh and log-watch.sh. Each has --help, passes ShellCheck with zero warnings, and was run on both its success and failure paths before it shipped.
ShellCheck catches quoting bugs, unreachable code, and portability hazards before they reach a production cron entry. Scripts that fail ShellCheck in CI tend to fail in subtler ways on real systems — a word-splitting bug that passes on your laptop but truncates a path under cron, or an unset variable that set -u turns into a 3am page. Every script in this toolkit passes shellcheck -x -S style, and the few deliberate exceptions carry an inline directive that says why. That means you can drop the ZIP into a repo with existing shell lint gates without adding carve-outs of your own. For teams that treat bash as production code, not glue, that difference shows up the first time someone runs shellcheck *.sh and gets zero warnings.
Operators who deploy and maintain Linux servers and want a vetted starting point instead of assembling fragments from a dozen blog posts. Freelance sysadmins onboarding a new client VPS. Homelab builders who need monitoring and backups that actually notify. Junior admins who understand bash syntax but have not yet internalized why cron breaks scripts that work fine interactively. The toolkit does not replace understanding — the field guide is there for that — but it removes the blank-page problem of wiring strict mode, logging, locking, and alerts consistently across every script you ship.
Two ZIP downloads plus one PDF. The main ZIP contains the full operational script system, bashlib.sh (30-function shared library), template.sh, README, LICENSE, and examples. The Bonus 10 ZIP adds ten standalone scripts built on the same library. The PDF is the 52-page field guide. Everything is ShellCheck-clean. Tested on Kali Linux with bash 5.3, with portability helpers for macOS. Unlimited personal and commercial use of the code; the kit itself is licensed to one buyer.
Instant download · Commercial use · No subscription
Can I use the toolkit commercially?
Yes. Use the code in unlimited personal and commercial projects, modify it, and ship it inside your own scripts and infrastructure. The one limit: do not resell or redistribute the kit itself. LICENSE.txt in the ZIP spells out the terms.
How is the toolkit delivered?
Instant download via Gumroad after purchase: one ZIP with the operational script system, bashlib.sh shared library, template.sh, README, LICENSE, and worked examples, plus the 52-page PDF field guide.
How is this different from the free snippets and the GitHub repo?
The free snippets and the GitHub scripts each solve one problem at a time. The toolkit is a cohesive operational system: interconnected scripts that share the 30-function bashlib.sh library, the same strict-mode conventions, and one deployment baseline you copy to every new host.
What systems does it run on?
Written for bash 4+ on Linux, with portability helpers for macOS (Homebrew bash). Tested on Kali Linux with bash 5.3. Every script passes shellcheck -x -S style, so it drops into repos with existing shell lint gates.
Is this a subscription?
No. One-time $9 purchase, instant download, no recurring charges.