icecast2 --version (return code: 0)
Icecast 2.4.3
icecast2 --help (return code: 1)
Icecast 2.4.3
usage: icecast [-b] -c <file>
or : icecast {-v|--version}
options:
-c <file> Specify configuration file
-v or --version Display version info
-b Run icecast in the background