cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.
Typeeto - Use Mac’s keyboard to type on iPad, iPhone, Android, etc.
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation
Type2phone - Type2Phone: Use your Mac as keyboard for iOS devices
explainshell - Match command-line arguments to their help.
1keyboard - Type on your iPhone, iPad or AppleTV using your Mac keyboard