Adding step by step guide to install und use terminal and cli

[00travelgirl00]

Questions I have for for using cli and terminal

Terminal:

• what is terminal, where to find it, how to use it, can I break something, when I use it? (Mac and Windows)
• How can I customize my terminal, to make it a bit user friendly (and that it looks similar to the tutorials, that I see)
• what are save commands
• what are common things I should now? (Like $, cd, ....) (external tutorial)

CLI:

• Requirements: how can I check it? How can I fit it, if my computer does not match with the requirements
• How to instal CLI (step by step)
• how to connect via SSH
• How should I built up my system (text DB, git, ......) Examples of a workflow and how to set it up
• grouped commands for a specific tasks, not single commands only.
• where do I get help, when I'm lost (wp help, support forum,...)
• what should I know about using cli inside wp folder and outside wp-folder. illustrations could be helpful

related issue: 294