iwevent --version (return code: 0)
iwevent Wireless-Tools version 30 Compatible with Wireless Extension v11 to v22. Kernel Currently compiled with Wireless Extension v22.
iwevent --help (return code: 0)
Usage: iwevent [OPTIONS] Monitors and displays Wireless Events. Options are: -h,--help Print this message. -v,--version Show version of this program.