ShellRef

Learn Bash with clear explanations, practical examples, and quick references for everyday command-line work.

ShellRef is an offline reference for Bash, Zsh, and terminal editors, presented in the style of a retro technical manual.

It’s designed for quick lookup while you work, whether you’re writing your first shell script, checking quoting rules, reviewing Zsh behavior, or trying to remember a Vim command without opening a browser.

The app includes reference sections for:

Bash fundamentals, control flow, functions, strings and arrays, file I/O, processes, and scripting practices Zsh differences, globbing, arrays, and configuration Common command-line tools for text processing, file operations, and system tasks Terminal editors including Nano, Vim, and Emacs Topics are organized as short reference entries with examples, notes, warnings, and tables where they help clarify syntax and behavior.

ShellRef also includes:

Offline access to all content Search across the full reference library Bookmarks for saving quick references Aged Paper (Light mode), Phosphor Green (Dark mode), and Phosphor Amber (Dark mode) display themes Adjustable text size for easier reading on iPhone and iPad ShellRef is intended for developers, sysadmins, students, and anyone who wants a readable shell reference without ads, accounts, or an internet connection.