ifplugstatus(8) on Linux
The text aa998f12ed5c, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
A link beat detection tool
Flags it lists
-
--auto -
--help -
--quiet -
--verbose -
--version -
-V -
-a -
-h -
-q -
-v