{
  components = {
    "com.skyrix.system" = {
      methods = {
        find = {
          executable = "/usr/bin/find";
          help       = "execute the UNIX find command\n
                        -> (array, string)";
          signatures = {
            "array,string" = { 
              cmdline    = "$1$";
              result     = "$stdout$";
              resultType = "arrayOfLines";
            };
            "array,string,string" = {
              cmdline    = "$1$ -name $2$"; 
              result     = "$stdout$";
              resultType = "arrayOfLines";
            };
            "array,string,string,string" = {
              cmdline    = "$1$ -name $2$ -type $3$"; 
              result     = "$stdout$";
              resultType = "arrayOfLines";
            };
          };
          fault = {
            code    = "$exit$";
            message = "$stderr$";
          };
        };
        
        ls = {
          executable = "/bin/ls";
          help       = "start ls";
          signatures = {
            "array,string" = { 
              cmdline    = "$1$";
              result     = "$stdout$";
              resultType = "arrayOfLines";
            };
          };
          fault = {
            code    = "$exit$";
            message = "$stderr$";
          };
        };
        
        bc = {
          executable = "/usr/bin/bc";
          help       = "start bc";
          signatures = {
            "i4,string" = {
              stdin	 = "$1$\n";
              result     = "$stdout$";
            };
            "i4,i4,i4" = {
              stdin	 = "$1$ + $2$\n";
              result     = "$stdout$";
            };
            "i4,i4,i4,string" = {
              stdin	 = "$1$ $3$ $2$\n";
              result     = "$stdout$";
            };
          };
          fault = {
            code    = "$exit$";
            message = "$stderr$";
          };
        };
      };
    };
  };
}