Quickly show command line cheat sheet for applications
Shell command cheat sheets.
Shell
Scroll within ssh screen terminal
How to scroll in shell screen terminal
Install letsencrypt certificates with temporary document root
How to generate HTTPS certificates with apache default webroot
SSH login via key file
How to log in via SSH key file
Forward remote port of remote machine to local port through SSH
How make a remote port accessible on a local port.
Rename user and email in git commit history
How to change author information on Git commits on an entire repository.