h5fromh4(1) on Linux
The text 3be1aaac4c2a, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
convert HDF4 scientific datasets to an HDF5 file
Flags it lists
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-V -
-a -
-d -
-h -
-o -
-v