gst-device-monitor-1.0(1) on Linux
The text acb9627f87d7, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
Simple command line testing tool for GStreamer device monitors
Flags it lists
-
--follow -
--help -
--version -
-f