[root@cs6 ~]# nohup ping g.cn nohup: 忽略输入并把输出追加到"nohup.out" #<==当前终端已经hang住，此时强制关闭当前终端（例如关闭该标签或者Ss日客户端工具），这个ping命令依然会在后台运行。 # 但是Ctrl + C 会退出命令执行 [root@cs6 ~]# ps -ef|grep ping root 1818 1 0 19:19 ? 00:00:00 ping g.cn root 1820 1797 0 19:19 pts/1 00:00:00 grep ping [root@cs6 ~]# tail -f nohup.out 64 bytes from 203.208.40.79: icmp_seq=97 ttl=128 time=42.2 ms 64 bytes from 203.208.40.79: icmp_seq=98 ttl=128 time=42.7 ms 64 bytes from 203.208.40.79: icmp_seq=99 ttl=128 time=42.7 ms 64 bytes from 203.208.40.79: icmp_seq=100 ttl=128 time=42.7 ms 64 bytes from 203.208.40.79: icmp_seq=101 ttl=128 time=42.6 ms 64 bytes from 203.208.40.79: icmp_seq=102 ttl=128 time=42.4 ms 64 bytes from 203.208.40.79: icmp_seq=103 ttl=128 time=43.0 ms 64 bytes from 203.208.40.79: icmp_seq=104 ttl=128 time=50.7 ms 64 bytes from 203.208.40.79: icmp_seq=105 ttl=128 time=42.9 ms 64 bytes from 203.208.40.79: icmp_seq=106 ttl=128 time=43.0 ms
[root@cs6 ~]# nohup ping g.cn & [1] 1855 [root@cs6 ~]# nohup: 忽略输入并把输出追加到"nohup.out" [root@cs6 ~]# tail -f nohup.out 64 bytes from 203.208.40.95: icmp_seq=8 ttl=128 time=42.1 ms 64 bytes from 203.208.40.95: icmp_seq=9 ttl=128 time=43.3 ms 64 bytes from 203.208.40.95: icmp_seq=10 ttl=128 time=44.1 ms 64 bytes from 203.208.40.95: icmp_seq=11 ttl=128 time=42.5 ms 64 bytes from 203.208.40.95: icmp_seq=12 ttl=128 time=42.9 ms 64 bytes from 203.208.40.95: icmp_seq=13 ttl=128 time=42.6 ms 64 bytes from 203.208.40.95: icmp_seq=14 ttl=128 time=42.8 ms 64 bytes from 203.208.40.95: icmp_seq=15 ttl=128 time=42.8 ms 64 bytes from 203.208.40.95: icmp_seq=16 ttl=128 time=134 ms 64 bytes from 203.208.40.95: icmp_seq=17 ttl=128 time=42.8 ms 64 bytes from 203.208.40.95: icmp_seq=18 ttl=128 time=42.2 ms 64 bytes from 203.208.40.95: icmp_seq=19 ttl=128 time=43.2 ms 64 bytes from 203.208.40.95: icmp_seq=20 ttl=128 time=43.7 ms 64 bytes from 203.208.40.95: icmp_seq=21 ttl=128 time=42.0 ms
原文：https://www.cnblogs.com/fadewalk/p/10846978.html