#!/bin/bash
set -Eeuo pipefail  # Exit on error, unset variables, pipe failures

#!/bin/bash
set -Eeuo pipefail

trap 'echo "Error on line $LINENO"' ERR
trap 'echo "Cleaning up..."; rm -rf "$TMPDIR"' EXIT

TMPDIR=$(mktemp -d)
# Script code here

# Wrong - unsafe
cp $source $dest

# Correct 

...(truncated)

</details>

### bats-testing-patterns

> Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring test-driven development of shell utilities.

<details>
<summary>View skill definition</summary>

# Bats Testing Patterns

Comprehensive guidance for writing comprehensive unit tests for shell scripts using Bats (Bash Automated Testing System), including test patterns, fixtures, and best practices for production-grade shell testing.

## When to Use This Skill

- Writing unit tests for shell scripts
- Implementing test-driven development (TDD) for scripts
- Setting up automated testing in CI/CD pipelines
- Testing edge cases and error conditions
- Validating behavior across different shell environments
- Building maintainable test suites for scripts
- Creating fixtures for complex test scenarios
- Testing multiple shell dialects (bash, sh, dash)

## Bats Fundamentals

### What is Bats?

Bats (Bash Automated Testing System) is a TAP (Test Anything Protocol) compliant testing framework for shell scripts that provides:

- Simple, natural test syntax
- TAP output format compatible with CI systems
- Fixtures and setup/teardown support
- Assertion helpers
- Parallel test execution

### Installation

```bash
# macOS with Homebrew
brew install bats-core

# Ubuntu/Debian
git clone https://github.com/bats-core/bats-core.git
cd bats-core
./install.sh /usr/local

# From npm (Node.js)
npm install --global bats

# Verify installation
bats --version

project/
├── bin/
│   ├── script.sh
│   └── helper.sh
├── tests/
│   ├── test_script.bats
│   ├── test_helper.sh
│   ├── fixtures/
│   │   ├── input.txt
│   │   └── expected_output.txt
│   └── helpers/
│       └──

...(truncated)

</details>

### shellcheck-configuration

> Master ShellCheck static analysis configuration and usage for shell script quality. Use when setting up linting infrastructure, fixing code issues, or ensuring script portability.

<details>
<summary>View skill definition</summary>

# ShellCheck Configuration and Static Analysis

Comprehensive guidance for configuring and using ShellCheck to improve shell script quality, catch common pitfalls, and enforce best practices through static code analysis.

## When to Use This Skill

- Setting up linting for shell scripts in CI/CD pipelines
- Analyzing existing shell scripts for issues
- Understanding ShellCheck error codes and warnings
- Configuring ShellCheck for specific project requirements
- Integrating ShellCheck into development workflows
- Suppressing false positives and configuring rule sets
- Enforcing consistent code quality standards
- Migrating scripts to meet quality gates

## ShellCheck Fundamentals

### What is ShellCheck?

ShellCheck is a static analysis tool that analyzes shell scripts and detects problematic patterns. It supports:

- Bash, sh, dash, ksh, and other POSIX shells
- Over 100 different warnings and errors
- Configuration for target shell and flags
- Integration with editors and CI/CD systems

### Installation

```bash
# macOS with Homebrew
brew install shellcheck

# Ubuntu/Debian
apt-get install shellcheck

# From source
git clone https://github.com/koalaman/shellcheck.git
cd shellcheck
make build
make install

# Verify installation
shellcheck --version

# Specify target shell
shell=bash

# Enable optional checks
enable=avoid-nullary-conditions
enable=require-variable-b

...(truncated)

</details>

## Source

[View on GitHub](https://github.com/wshobson/agents)