“My 10 Unix Command Line Mistakes” (cyberciti.biz)

(not actually my post, just using the same title)

(2009)

> As root I killed all process, this was our main Oracle db box

Oh, my. I hope that is greatly exaggerated.

Some of these are fair. But really, never run a manual command if you can ever help it, stage it somewhere. Always use config management, stage it in a VM.