Linux nohup命令应用简介--让Linux的进程不受终端影响

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