参考URL：
http://jingyan.baidu.com/article/295430f128d8ea0c7e005089.html
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其它的不提，主要用的几个命令：
A,screen -S screenname
B,在screen窗口键入Ctrl+a-d中断(先按ctrl+a,然后再接d，进行detach操作)
C,screen -ls
D,screen -r screenname
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[jawidx@fedev n-5]$ screen -S screenname //指定窗口名称
[jawidx@fedev ~]$ 在screen窗口键入C-a d中断（C-a k会杀掉screen会话）
[jawidx@fedev n-5]$ screen -ls
There are screens on:
16234.pts-112.fedev (Attached)
4031.pts-455.fedev (Detached)
26764.pts-455.fedev (Detached)
6331.pts-455.fedev (Detached)
26679.pts-345.fedev (Detached)
8987.screenname (Attached)
6 Sockets in /tmp/uscreens/S-jawidx.
[jawidx@fedev n-5]$ screen -r screenname //可用8987代替会话名，对于Attached的会话，需要先screen -d之后才能screen -r。
[jawidx@fedev ~]$ //继续刚才的工作
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