使用：
screen为多重视窗管理程序。screen能在一个终端程序执行多个任务，离线执行任务等。

语法： screen [ -options ] [ cmd [ args ] ]
screen -r [[pid.]tty[.host]]
命令行参数： -A
Adapt the sizes of all windows to the size of the current terminal.（将所有的窗口调整为终端的大小）
-d|-D [pid.tty.host]
does not start screen, but detaches the elsewhere running screen session.（不启动屏幕，但是分离在别处运行的会话）
-h num
Specifies the history scrollback buffer to be num lines high.（指明历史缓冲区行数）
-m causes screen to ignore the $STY environment variable. With "screen -m" creation of a new session is enforced,（忽略$STY（screen会话）环境变量，强制创建一个新的会话）
-r sessionowner/[pid.tty.host]
resumes a detached screen session.（恢复离线的会话）
-R attempts to resume the first detached screen session it finds. If successful, all other command-line options are ignored. If no detached session exists, starts a new session using the specified options, just as if -R had not been specified.（先恢复离线，若没有离线则创建新的会话）
-ls [match]
-list [match]
does not start screen, but prints a list of pid.tty.host strings identifying your screen（显示目前所有的screen作业）
sessions.
-wipe [match]
does the same as "screen -ls", but removes destroyed sessions instead of marking them as -S sessionname
When creating a new session, this option can be used to specify a meaningful name for the session.）
-x Attach to a not detached screen session. (Multi display mode). （恢复之前离线的screen作业）
-S sessionname
When creating a new session, this option can be used to specify a meaningful name for the session.( 当创建一个新的会话，给它定义一个名字)

Linux 中screen命令的安装及其使用