axlisten(1) on Linux
The text 8aac244d15d8, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it. The page shows this text now.
monitor AX.25 traffic
Flags it lists
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-8 -
-a -
-c -
-h -
-i -
-p -
-r -
-t -
-tt -
-ttt -
-tttt -
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-v