[BioC] scan date information

[Robert Dunne]

Hi List,

I apologise for what may be a very simple question. How can I retrieve
the scan date information from cel files?

I can find the information using some editors, kate under linux shows
"a f f y m e t r i x - s c a n - d a t e   ( 2 0 0 8 - 0 4 - 0 3"
but I can't find it all all using vi or emacs. I suppose this is 
something to do with encoding.
Also "string file.cel | grep "d a t e"" does not work.

I have tried the affxparser library but
readCelHeader("file.cel")
does not pick up the date.

Unfortunately in many experiments the scan date turns out to be the 
major effect.

Bye
Rob