which 如： 输入：which reboot 输出：/sbin/reboot 输入：which shutdown -h now 输出：/sbin/shutdown 相关文章： 2022-12-23 2022-12-23 2021-07-22 2022-12-23 2022-12-23 2021-10-19 2021-11-18 2021-11-21