Does there exist a tool for searching out which Guix package provides a 
particular executable, or a particular file more generally, please?

(The ones I particularly want to find ATM are the anagram generator 
executable an, and the Octave library optim)

-- 

Kind regards,

Dan Hatton

                 Dr. Daniel C. Hatton

E-mail:         dan.hatton@btinternet.com

SIP:            dan.hatton@sip.linphone.org
Signal:         dch.28