I need to remove the RUBYOPT variable from the environment so I can
install MacRuby.

I've checked all my (local) environment (dot) files.  I can't find any
RUBYOPT env variable definition.  In fact, it is global, since I can see
it in another user session within my MacBook Pro.

I've checked the /etc/profile but RUBYOPT isn't defined there.

Question: Where would the global env RUBYOPT definition/assignment be?

...and is there an effective way to track down the source of global env
variables definitions/assignments?

Regards,

Ric.
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