nohup命令应用简介--让Linux的进程不受终端影响
by:授客
QQ：1033553122
#开启ping进程
[root@localhost ~]# ping
localhost &
[2] 4169
[1]
Terminated
nohup ping localhost
[root@localhost ~]# PING
localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost
(127.0.0.1): icmp_seq=1 ttl=64 time=0.105 ms
64 bytes from localhost
(127.0.0.1): icmp_seq=2 ttl=64 time=0.069 ms
...
如图
#查看后台进程：
[root@localhost ~]# ps -axu
| grep ping
Warning: bad syntax,
perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
root
4169
0.0
0.0
4392 792
pts/0
S
04:08 0:00
ping localhost
root
4177
0.0
0.0
4336 728
pts/1
S+
04:10 0:00
grep ping
#关闭开启ping命令的终端，再次查看进程
[root@localhost ~]# ps -axu
| grep ping
Warning: bad syntax,
perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
root
4184
0.0
0.0
4336 728
pts/1
S+
04:13 0:00
grep ping
说明：进程结束
#加上nohup命令，让进程不受终端影响
[root@localhost ~]# nohup
ping localhost &
[1] 4218
[root@localhost ~]# nohup:
ignoring input and appending output to `nohup.out'
#查看后台进程
[root@localhost ~]# ps -axu
| grep ping
Warning: bad syntax,
perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
root
4218
0.1
0.0
4392 792
pts/0
S
04:19 0:00
ping localhost
root
4224
0.0
0.0
4336 732
pts/1
S+
04:20 0:00
grep ping
#关闭开启ping命令的中断，再次查看进程
[root@localhost ~]# ps -axu
| grep ping
Warning: bad syntax,
perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
root
4218
0.0
0.0
4392 792
?
S
04:19 0:00
ping localhost
root
4229
0.0
0.0
4336 728
pts/1
S+
04:21 0:00
grep ping
说明：进程依然还在
