shell

Bash is the default entry point for automating ops and deploys, and the details that make a script robust — default variables, parameter expansion and string slicing, conditionals, and loops — are where the skill lives. This reference covers variables, branches, loops, functions, and common string/file operations for both writing scripts from scratch and debugging existing ones.

Full command reference for gptme CLI: start a chat, -m model, -t tools, -y auto-confirm, -n non-interactive, --output-format json, resume, and tools/chats/models subcommands, all matched to official docs.

Zsh cheat sheet — complete .zshrc settings, oh-my-zsh plugins and themes, aliases, autocompletion, history search and prompt customization, plus glob patterns, directory jumping and plugin management tips.

A Fish Shell reference covering its syntax differences from Bash, variables and functions, out-of-the-box autocompletion, aliases, and theme configuration.

On Windows, system administration and automation hinge on PowerShell's object pipeline — cmdlets return objects, not text, so you filter and act on properties directly. This reference covers common cmdlets and their Linux counterparts, file/process/service operations, and Invoke-Command remoting, to turn daily Windows ops into scripts.