cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.
GNU Bourne Again SHell - Bash is the shell, or command language interpreter, that will appear in the GNU operating system.
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation
fish shell - The friendly interactive shell.
explainshell - Match command-line arguments to their help.
PowerShell Studio - PowerShell Studio is the easiest GUI designer and script generator available.