lulifac1@maheer:~> top -h
top: procps version 3.2.8
usage: top -hv | -bcisSH -d delay -n iterations [-u user | -U user] -p pid [,pid ...]
lulifac1@maheer:~> cheese -h
Usage:
cheese [OPTION...] - Take photos and videos with your webcam, with fun graphical effects
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gtk Show GTK+ Options
--help-gst Show GStreamer Options
Application Options:
-v, --verbose Be verbose
-w, --wide Enable wide mode
--version output version information and exit
--display=DISPLAY X display to use
lulifac1@maheer:~> alsamixer -h
Usage: alsamixer [options]
Useful options:
-h, --help this help
-c, --card=NUMBER sound card number or id
-D, --device=NAME mixer device name
-V, --view=MODE starting view mode: playback/capture/all
Debugging options:
-g, --no-color toggle using of colors
-a, --abstraction=NAME mixer abstraction level: none/basic