wcshead(1) on Linux
The text c0b42a0be807, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
Print WCS part of FITS or IRAF image header
Flags it lists
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-h -
-r -
-t -
-v -
-w -
-z