dst_test(1) on Linux
The text 202b64104939, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
a Twinhan DST and clones test utility.
Flags it lists
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-a -
-c -
-g -
-i -
-r -
-s -
-t