Day 6 - Editing with “vim”
A month-long course aimed at those who aspire to get Linux-related jobs in the industry - junior Linux sysadmin, DevOps-related work, and similar. Learn the skills required to sysadmin a remote Linux server from the commandline.
http://www.vimgenius.com is great for learning the basic commands. https://www.vim-hero.com is great if you want to go more in depth and play games to practice using them.