IshallbeThatIshallbe:~ iamthat$ ps -ef |grep ping 502 450 1 0 9:30PM ?? 0:00.05 ping www.baidu.com 502 492 475 0 9:32PM ttys000 0:00.00 grep ping IshallbeThatIshallbe:~ iamthat$ kill -9 502 -bash: kill: (502) - No such process IshallbeThatIshallbe:~ iamthat$ kill -9 450 IshallbeThatIshallbe:~ iamthat$ ps -ef |grep ping 502 495 475 0 9:33PM ttys000 0:00.00 grep ping 首先我这里 kill ping 百度的进程 重新演示
创建程序： IshallbeThatIshallbe:~ iamthat$ nohup ping www.baidu.com >> ping.txt & [1] 507 ---注意这为进程号 IshallbeThatIshallbe:~ iamthat$
可以看到该程序不断有输出 IshallbeThatIshallbe:~ iamthat$ tail -f ping.txt 64 bytes from 180.97.33.108: icmp_seq=19 ttl=54 time=46.477 ms 64 bytes from 180.97.33.108: icmp_seq=20 ttl=54 time=45.426 ms 64 bytes from 180.97.33.108: icmp_seq=21 ttl=54 time=46.482 ms 64 bytes from 180.97.33.108: icmp_seq=22 ttl=54 time=45.679 ms 64 bytes from 180.97.33.108: icmp_seq=23 ttl=54 time=46.772 ms 64 bytes from 180.97.33.108: icmp_seq=24 ttl=54 time=47.559 ms 64 bytes from 180.97.33.108: icmp_seq=25 ttl=54 time=45.568 ms 64 bytes from 180.97.33.108: icmp_seq=26 ttl=54 time=44.652 ms 64 bytes from 180.97.33.108: icmp_seq=27 ttl=54 time=44.747 ms 64 bytes from 180.97.33.108: icmp_seq=28 ttl=54 time=45.868 ms 64 bytes from 180.97.33.108: icmp_seq=29 ttl=54 time=47.068 ms 64 bytes from 180.97.33.108: icmp_seq=30 ttl=54 time=46.171 ms 64 bytes from 180.97.33.108: icmp_seq=31 ttl=54 time=47.026 ms 64 bytes from 180.97.33.108: icmp_seq=32 ttl=54 time=45.162 ms 64
关闭终端，重新打开一个终端
Last login: Wed Apr 1 21:37:38 on ttys000 IshallbeThatIshallbe:~ iamthat$ tail -f ping.txt 64 bytes from 180.97.33.108: icmp_seq=76 ttl=54 time=48.586 ms 64 bytes from 180.97.33.108: icmp_seq=77 ttl=54 time=46.160 ms 64 bytes from 180.97.33.108: icmp_seq=78 ttl=54 time=48.099 ms 64 bytes from 180.97.33.108: icmp_seq=79 ttl=54 time=44.345 ms 64 bytes from 180.97.33.108: icmp_seq=80 ttl=54 time=47.058 ms 64 bytes from 180.97.33.108: icmp_seq=81 ttl=54 time=44.917 ms 64 bytes from 180.97.33.108: icmp_seq=82 ttl=54 time=44.886 ms 64 bytes from 180.97.33.108: icmp_seq=83 ttl=54 time=47.997 ms 64 bytes from 180.97.33.108: icmp_seq=84 ttl=54 time=45.928 ms 64 bytes from 180.97.33.108: icmp_seq=85 ttl=54 time=46.988 ms 64 bytes from 180.97.33.108: icmp_seq=86 ttl=54 time=44.337 ms 64 bytes from 180.97.33.108: icmp_seq=87 ttl=54 time=48.580 ms
程序依然在输出在运行。
可以看到那个507的进程一直在跑 IshallbeThatIshallbe:~ iamthat$ ps -ef |grep ping 502 507 1 0 9:36PM ?? 0:00.05 ping www.baidu.com 502 528 520 0 9:38PM ttys000 0:00.00 grep ping IshallbeThatIshallbe:~ iamthat$
nohup 程序名 & (使程序推到后台运行，即使终端关闭，该程序依然运行)
原文：http://www.cnblogs.com/IamThat/p/4385437.html