Oh that reminds me I recently did something similar on my file server. I had a bunch of folders called A, B, C etc... for movies and I figured it's just easier to have them all in one folder. Since Linux permissions are a pain in the ass due to lack of inheritance all these folders have all sorts of random permissions depending on what user put them there (ex: my p2p user, myself, root etc) so it was easier to just go as root. I was typing the following command:
mv A/* .
Sounds fine right? Well I was going fast, doing B, C etc.. at one point I fumbled the keyboard and hit enter before typing the letter.
mv /* .
Yeah. That pretty much wrecked everything. It moved /bin /etc and lot of other stuff. I was able to move it back, but problem is, all the attributes and permissions did not match anymore so I had to compare with another Linux systems to get them to match again.
I still have not rebooted that server, and it scares me to try. It has redundant power supply and is on a ~4 hour battery backup system. I am not rebooting it, ever. :awe: