ShellCheck Config Generator

Generate ShellCheck configuration for shell script linting.

Capabilities

• Generate .shellcheckrc files
• Configure rule exclusions
• Set shell dialect
• Configure severity levels
• Document rule decisions
• Create project-specific configs

Usage

Invoke this skill when you need to:

• Set up ShellCheck for a project
• Configure linting rules
• Exclude specific warnings
• Document rule decisions

Generated Configuration

# .shellcheckrc - ShellCheck configuration
# https://www.shellcheck.net/wiki/

# Default shell dialect (sh, bash, dash, ksh)
shell=bash

# Source path for sourced files
source-path=SCRIPTDIR
source-path=lib/

# External sources (follow source commands)
external-sources=true

# Severity level: error, warning, info, style
severity=warning

# Disable specific warnings

# SC1090: Can't follow non-constant source
disable=SC1090

# SC1091: Not following (sourced file not found)
disable=SC1091

# SC2034: Variable appears unused (often used in sourced scripts)
# disable=SC2034

# SC2086: Double quote to prevent globbing (sometimes intentional)
# disable=SC2086

# SC2155: Declare and assign separately
# disable=SC2155

# Enable optional checks

# Check for unquoted variables that could be empty
enable=check-unassigned-uppercase

# Check for extra masking of return values
enable=check-extra-masked-returns

Rule Categories

Critical (Never Disable)

• SC2094: File read and written in same pipeline
• SC2095: Add < /dev/null to prevent ssh from eating stdin
• SC2096: Script requires shebang
• SC2148: Missing shebang

Important (Disable Carefully)

• SC2086: Double quote to prevent globbing
• SC2046: Quote to prevent word splitting
• SC2035: Use ./* to avoid globbing issues
• SC2012: Use find instead of ls

Style (Project Decision)

• SC2034: Variable appears unused
• SC2155: Declare and assign separately
• SC2164: Use cd ... || exit

Target Processes

• shell-script-development
• cli-unit-integration-testing
• cross-platform-cli-compatibility