pscoast(1gmt) on Linux
The text 15ae1d9d4f9a, as Debian 6.0 (Squeeze) shipped it.
To plot land-masses, water-masses, coastlines, borders, and rivers
Flags it lists
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-A -
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-G -
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-J -
-Jz -
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-L -
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-O -
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-Q -
-R -
-S -
-T -
-U -
-V -
-W -
-Z -
-bo -
-c -
-m