ShellRef vs NetPilot

ShellRef is an offline reference for Bash, Zsh, and terminal editors, presented as a focused CRT console reference 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 the full reference library • Search across commands, topics, examples, and notes • My Quick Refs for saving frequently used entries • A CRT-inspired interface with White, Green, and Amber phosphor display modes • Optional scanlines and adjustable display glow • Reduced-effects controls for a cleaner reading experience • 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.

Build your networking knowledge. Practice the commands. Understand the why. NetPilot brings networking lessons, hands-on CLI practice, quizzes, and reference tools together on your iPhone and iPad. Whether you're studying for the CCNA, preparing for an interview, or refreshing your skills, make your next study session count. LEARN THE FUNDAMENTALS Explore 49 academy topics covering networking fundamentals, IP addressing, routing, switching, wireless, security, and more. Follow guided learning paths to connect your reading with practical exercises. PRACTICE AT THE COMMAND LINE Work through 366 guided CLI labs or experiment in the CLI sandbox. Practice supported Cisco IOS-style commands with contextual ? help, command completion, and configuration modes in a simulated environment. No physical router required. TEST YOUR UNDERSTANDING Practice with 500 questions across 24 categories. Use Study mode to learn with explanations, or challenge yourself with timed exams. Review incorrect answers and identify the areas that need more attention. BUILD YOUR DAILY HABIT Track quiz results, completed labs, study streaks, and learning-path progress. Earn achievements, save useful content, and set optional study reminders. KEEP USEFUL REFERENCES CLOSE Review networking interview questions, browse configuration examples, look up acronyms, and sharpen your subnetting skills with built-in tools. DESIGNED FOR YOUR STUDY STYLE Choose your color theme and appearance. Study on iPhone or take advantage of adaptive iPad layouts. Bundled lessons and practice content are available offline. START FREE Explore academy content, selected quiz categories, and 10 free CLI labs. Additional quiz categories, labs, and premium resources require NetPilot Pro. NetPilot is an independent educational app and is not affiliated with or endorsed by Cisco. The CLI is a training simulation, not a complete implementation of Cisco IOS. Practice results do not guarantee certification exam results. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://netpilotapp.com/privacy-policy/