[Orgmode] File-level execute permissions?

[Bill Harris]

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I understand at least the obvious risks in executing source code blocks
inside an unknown org file, but, when I created the org file myself, it
would be nice to be able to export the file without confirming execution
20+ times.  

Is there a header element I can set that asks one time for the entire
file (or session, perhaps) for execute permission?  I think that would
be safer than blindly turning on permission, for I'd at least get one
opportunity to abort exporting if I was surprised by the existence of
src blocks.

Thanks,

Bill
- -- 
Bill Harris                  http://makingsense.facilitatedsystems.com/
Facilitated Systems                              Everett, WA 98208 USA
http://www.facilitatedsystems.com/               phone: +1 425 374-1845
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