Bash Master

This is your comprehensive Bash scripting reference that works across Linux, macOS, WSL, Git Bash, and containers. It opens every script with the safety preamble (set -euo pipefail), enforces ShellCheck validation, and follows the Google Shell Style Guide. The real value is in the platform-specific guidance: it handles MSYS path conversion quirks on Windows, knows when macOS needs gsed instead of sed, and tells you when Alpine containers need bash installed. It won't help with PowerShell or batch files, but if you're writing shell scripts for CI/CD pipelines or system automation, this covers the cross-platform gotchas and security patterns you'd otherwise learn the hard way.