Query for dpkg.

[Jose Albores <jalbores@usa.net>]

I'd like to know how can I see which packages are in my dpkg's data
base.
Or more precisely:
What command is equivalent to:
	# rpm -qa
for rpm's packages ??? But for dpkg's ???
TIA.
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                  José Albores
                  Buenos Aires.
                  Argentina.
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