/* FINSH_OPTION_ECHO=0x01 is echo mode, other values are none-echo mode. */
void finsh_set_echo(rt_uint32_t echo)
/* FINSH_OPTION_ECHO=0x01 is echo mode, other values are none-echo mode. */
void finsh_set_echo(rt_uint32_t echo)
{
    RT_ASSERT(shell != RT_NULL);
    shell->echo_mode = (rt_uint8_t)echo;
}