thin_dump(8) on Linux
The text 39c5fb84c12f, as Debian 10 (Buster) shipped it.
dump thin provisioning metadata from device or file to standard output.
Flags it lists
-
--dev-id -
--format -
--help -
--repair -
--skip-mappings -
--version -
-V -
-f -
-h -
-r