How to clear the pasteboard / find string from the command line? I want to be able clear out the whatever data is cached in find (command-f) clipboard contents from the command line. 

Whatever is in there seems to carry across between applications. This is a clear security risk in some cases. 


How to secure macOS&#39;s clipboard?


Is there a way to do this?
The magic words seem to be 

pbcopy -pboard find &lt; /dev/null