:~$ mono
Usage is: mono [options] program [program-options]

Development:
    --aot                  Compiles the assembly to native code
    --debug                Enable debugging support
    --profile[=profiler]   Runs in profiling mode with the specified profiler module
    --trace[=EXPR]         Enable tracing, use --help-trace for details
    --help-devel           Shows more options available to developers

Runtime:
    --config FILE          Loads FILE as the Mono config
    --verbose, -v          Increases the verbosity level
    --help, -h             Show usage information
    --version, -V          Show version information
    --optimize=OPT         Turns on or off a specific optimization
                           Use --list-opt to get a list of optimizations
    --security             Turns on the security manager (unsupported, default is off)