First and foremost skill of any "digital hustler" is to know their way around unix-like systems. And, that is only possible by competence in use of terminal.
This is an amazing website for quick learning, or go into the way deep of linux commands. The book is free if you are interested.
Go to the link
This is an amazing website for quick learning, or go into the way deep of linux commands. The book is free if you are interested.
Go to the link