dgpsip(1) on Linux
The text d4f0d08f2ae3, as Debian 4.0 (Etch) shipped it. The page shows this text now.
get Differential GPS corrections via the internet
Flags it lists
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-4 -
-6 -
-B -
-N -
-c -
-d -
-h -
-n -
-o -
-p -
-s -
-t -
-v