要显示sendmail服务在2345启动级别中的状态,用指令:
#--list sendmail
显示结果如下:
sendmail 0:off 1:off 2:off 3:off 4:off 5:off 6:off
#--list sendmail
显示结果如下:
sendmail 0:off 1:off 2:off 3:off 4:off 5:off 6:off
chkconfig
举一反三
- 启动时点火开关拨动顺序为( )档→( )档→( )档;重新打启动档时,点火开关必须从( )开始。 A: OFF;ON;ST;OFF; B: OFF;OFF;ON;ST; C: ST; OFF;ON; OFF; D: ON;OFF; ST;OFF;
- 用axis off命令可以不显示网格线,用grid off命令可以不显示坐标轴。
- How much off was the dress the author found? A: 15% off B: 30% off C: 50% off D: 25% off
- Two men took the parcel off the plane. They ______ . A: took off it B: it took off C: took off D: took it off
- The sports meeting ____. A: put off B: is put off C: is to put off D: is putted off
内容
- 0
Our plane ______ from New York at 6:00 yesterday evening. A: took off B: pat off C: flew off D: left off
- 1
It’s raining ( ) . A: off B: on and off C: on D: off and on
- 2
There was an initial excitement but it has started to _____. A: put off B: cut off C: give off D: wear off
- 3
关闭网格的命令为 A: take off B: pick off C: grid off D: net off
- 4
They are all for your suggestion that the meeting_________. A: is to put off B: was put off C: should put off D: be put off