nohup命令應用簡介--讓Linux的進程不受終端影響
by:授客
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#開啟ping進程
[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
...
如圖
#查看后臺進程：
[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
#關閉開啟ping命令的終端，再次查看進程
[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
說明：進程結束
#加上nohup命令，讓進程不受終端影響
[root@localhost ~]# nohup
ping localhost &
[1] 4218
[root@localhost ~]# nohup:
ignoring input and appending output to `nohup.out'
#查看后臺進程
[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
#關閉開啟ping命令的中斷，再次查看進程
[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
說明：進程依然還在
