WEF

int menger_hello(struct cmd_element*,struct vty*,int,char **);

struct cmd_element menger_hello_cmd=

{

   "menger say hello",

    "menger_hello",

    "greet\ngreet ro someone\n"

};

int menger_hello(struct cmd_element *self,struct vty *vty,int argc,char **argv)

{

     vty_out(vty,"hello you can do like this %s",VTY_NEWLINE);

     return CMD_SUCCESS;

}