Started rm -rf * on /usr by accident

[fog]

How can I fix this?

[dgbaker]

You can't, you will need to reload the server O/S and reinstall everything.

[PWSowner]

That brings back memories.

Some directories could be replaced by copying from another server, but not that one. You do need a reinstall. If you have backups of your accounts you can put them back after the reinstall, but if the backups are on the same drive, you need to copy them elsewhere. If you don't have backups, I suggest copying as much as possible, if you still have access, before the reinstall to save work later.