Occasionally (or not occasionally, I don’t know your life), you submit a command like rsync or scp and you really wish you hadn’t. Maybe it’s because it is taking too long and you can’t keep your laptop open for the length of time it needs to run, or maybe because you’re missing a crucial file for the operation. Fear not! There’s an abort command! All you need to do is type Cntrl+C (like when you copy things in Microsoft Word). [Note: anything that’s been completed won’t be undone.]