unyaffs(1) on Linux
The text 02a1f9305626, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
extract files from a YAFFS2 file system image
Flags it lists
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-V -
-b -
-d -
-t -
-v