linux-bash-scripting SKILL.md skillA
linux-bash-scripting from iliaal/whetstone is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add iliaal/whetstone/linux-bash-scripting@git:20260227.215f429Pins git:20260227.215f429 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- iliaal/whetstone
- Path
distillery/generated-skills/linux-bash-scripting/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260227.215f429, committed Feb 27, 2026
- Size
- 5,292 bytes
- Repository stars
- 35
- License
- MIT
Defensive Bash scripting for Linux: safe foundations, argument parsing, production patterns, ShellCheck compliance. Use when writing "bash script", "shell script", "linux automation", "system script", "cron job", "deployment script", "CLI tool in bash", or "automate with bash".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Linux Bash Scripting
Target: GNU Bash 4.4+ on Linux. No macOS/BSD workarounds, no Windows paths, no POSIX-only restrictions.
## Script Foundation
```bash
#!/usr/bin/env bash
set -Eeuo pipefail
shopt -s inherit_errexit
readonly SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
trap 'printf "Error at %s:%d\n" "${BASH_SOURCE[0]}" "$LINENO" >&2' ERR
trap 'rm -rf -- "${_tmpdir:-}"' EXIT
```
- `-E` propagates ERR traps into functions
- `inherit_errexit` propagates errexit into `$()` command substitutions
- Always create temp dirs under the EXIT trap: `_tmpdir=$(mktemp -d)`
## Core Rules
- Quote every expansion: `"$var"`, `"$(cmd)"`, `"${array[@]}"`
- `local` for function variables, `local -r` for function constants, `readonly` for script constants
- `printf '%s\n'` over `echo` — predictable behavior, no flag interpretation
- `[[ ]]` for conditionals; `(( ))` for arithmetic; `$()` over backticks
- End options with `--`: `rm -rf -- "$path"`, `grep -- "$pattern" "$file"`
- Require env vars: `: "${VAR:?must be set}"`
- Never `eval` user input; build commands as arrays: `cmd=("grep" "--" "$pat" "$f"); "${cmd[@]}"`
…Read the whole file at its exact version.
How to install
mdr add iliaal/whetstone/linux-bash-scripting@sha256:42794694ab38bfbcThe line at the top of this page pins the label git:20260227.215f429, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_indc4mbx2z72cop2)
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Versions
The registry has recorded 1 version of this file, committed on Feb 27, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5292 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
iliaal/whetstone · 35 stars · license MIT · pushed 2026-11-01 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_indc4mbx2z72cop2 GET https://markdownregistry.com/api/v1/resolve?ref=iliaal/whetstone/linux-bash-scripting GET https://markdownregistry.com/api/v1/blob/42794694ab38bfbc3437a069c720d8f3da68d8da0fecd9a1d49b10fe1deac11e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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