manpage
執行下面指令，觀看「gst-device-monitor-1.0」的使用說明。
$ man gst-device-monitor-1.0
help
執行
$ gst-device-monitor-1.0 --help
或是執行
$ gst-device-monitor-1.0 -h
顯示
Usage:
gst-device-monitor-1.0 [OPTION…] [DEVICE_CLASSES[:FILTER_CAPS]] [DEVICE_CLASSES[:FILTER_CAPS]] …
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gst Show GStreamer Options
Application Options:
--version Print version information and exit
-f, --follow Don't exit after showing the initial device list, but wait for devices to added/removed.
version
執行
$ gst-inspect-1.0 --version
顯示
gst-device-monitor-1.0 version 1.12.3
GStreamer 1.12.3
https://launchpad.net/distros/ubuntu/+source/gst-plugins-base1.0