zbackup(1) on Linux
The text 60a555c7a4ed, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
versatile deduplicating backup tool
Flags it lists
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--cache-size -
--non-encrypted -
--password-file -
--threads