?????????????ubuntu 14.04
??????ping www.baidu.com?????
????1.???????????
????ping www.baidu.com
???????????????????????baidu???????
????2.??????????????
????nohup ping www.baidu.com &
???????д?????????????????????磺[1] 13668?????????μ???У?????????????
????$ nohup: ?????????????????"nohup.out"
???????????????????????????????????????????·???μ?nohup.out?С?
????ctrl+c????????????????????β?nohup.out?????????????仯???????????????????????????????С?
????3.???????????
???????????????ж???????????????????nohup.out?У?????????????????????????????????????????????
????linux???????????3?????????????0??????????1???????????2????????????
????nohup ping www.baidu.com 1>result.out 2>result.out & //??????????????????д??result.out???
????4.??????????е????
???????????????????????е??????????????????????????????????·?????
????ps -e????//??????к?????е????
????ps -e | grep ping //??????д???ping?????
????????????????????????????????????
????kill [?????]