/usr/share/doc/wcstools/examples/saomua2 is in wcstools 3.9.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | a=`fileroot -r _ x $1`
saoimage -quiet -reg `imua2 -r 15 $1` -wcscom sua2_-u_%x_-a_%s_-zo_$a $*
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