"Command not found" misfeature

[Michal Schmidt]

On Sat, 2 Oct 2010 09:51:31 +0100 Richard W.M. Jones wrote:
> F14 seems to have acquired a misfeature where if you mistype a command
> or a command is not found, it prints "Command not found."  then pauses
> for some time, then (sometimes, not always) displays some sort of
> error[1].
> 
> How do I permanently disable this behaviour?

Remove PackageKit-command-not-found. 

It's not new in F-14. It's been the default since F-12:
http://fedoraproject.org/wiki/Features/PackageKitCommandNotFound

Michal