linux-bash-scripting SKILL.md skillA
linux-bash-scripting from iliaal/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add iliaal/ai-skills/linux-bash-scripting@git:20261011.09c16dfPins git:20261011.09c16df in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- iliaal/ai-skills
- Path
skills/linux-bash-scripting/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261011.09c16df, committed Oct 11, 2026
- First version recorded
- Jul 18, 2026
- Size
- 5,238 bytes
- Repository stars
- 45
- License
- MIT
Defensive Bash scripting for Linux: safe foundations, argument parsing, production patterns, ShellCheck compliance. Use when writing bash scripts, shell scripts, cron jobs, or CLI tools in 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
Produce bash scripts that pass `shellcheck --enable=all` and `shfmt -d` with zero warnings.
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
SCRIPT_DIR=$(dirname -- "${BASH_SOURCE[0]}") || exit "$?"
SCRIPT_DIR=$(cd -- "${SCRIPT_DIR}" && pwd -P) || exit "$?"
readonly SCRIPT_DIR
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
- Resolve the script's own data files against `SCRIPT_DIR`, never the caller's cwd or `git rev-parse --show-toplevel`. A shared linter invoked from another project's git hook, a cron job, or a wrapper runs with someone else's cwd, so a caller-relative rules path resolves to a file that does not exist: the rule set loads empty, zero violations are found, exit 0. It is a silent no-op, not an error, and running it from inside its own repo passes for the wrong reason. Exercise it once from a scratch directory that
…Read the whole file at its exact version.
How to install
mdr add iliaal/ai-skills/linux-bash-scripting@sha256:c91aa3d85ef09309The line at the top of this page pins the label git:20261011.09c16df, 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_iyfxzdrrgny46dtu)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Jul 18, 2026 and Oct 11, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261011.09c16df latest | 2026-10-11 | 09c16df | 5,238 B | A | view · diff |
| git:20261003.39b82ef | 2026-10-03 | 39b82ef | 4,987 B | A | view · diff |
| git:20260926.7b0520a | 2026-09-26 | 7b0520a | 4,705 B | A | view · diff |
| git:20260913.76ac4e8 | 2026-09-13 | 76ac4e8 | 4,709 B | A | view · diff |
| git:20260908.6c9fed1 | 2026-09-08 | 6c9fed1 | 4,422 B | A | view · diff |
| git:20260906.9107cb1 | 2026-09-06 | 9107cb1 | 11,940 B | A | view · diff |
| git:20260829.3d61391 | 2026-08-29 | 3d61391 | 11,141 B | A | view · diff |
| git:20260819.2f9d263 | 2026-08-19 | 2f9d263 | 7,806 B | A | view · diff |
| git:20260718.80733c4 | 2026-07-18 | 80733c4 | 6,989 B | A | view |
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 (5238 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/ai-skills · 45 stars · license MIT · pushed 2026-10-31 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_iyfxzdrrgny46dtu GET https://markdownregistry.com/api/v1/resolve?ref=iliaal/ai-skills/linux-bash-scripting GET https://markdownregistry.com/api/v1/blob/c91aa3d85ef0930945b6cfbbbb9871c7e597112de64c017702feba18577d1ac0
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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