http://www.smalluv.com/linux_screen_command.html
http://blog.csdn.net/zxkln/article/details/6711244
今天小研究了下gnu screen，发现强大的不得了，之前小看它了。再次体会了linux设计的精髓：工具功能单而精。
如果你对这个小软件知之甚少，可以参考：http://zh.wikipedia.org/wiki/GNU_Screen
如果你想深入研究，可以参考：http://www.gnu.org/software/screen/
如果你只想会用，随便上网搜搜“linux screen 用法”，就可以了。
在此，分享一下screen速查表格。（来自http://www.pixelbeat.org/lkdb/screen.html）
| Key | Action | Notes |
| Ctrl+a c | new window | |
| Ctrl+a n | next window | I bind F12 to this |
| Ctrl+a p | previous window | I bind F11 to this |
| Ctrl+a “ | select window from list | I have window list in the status line |
| Ctrl+a Ctrl+a | previous window viewed | |
| Ctrl+a S | split terminal horizontally into regions | Ctrl+a c to create new window there |
| Ctrl+a | | split terminal vertically into regions | Requires debian/ubuntu patched screen 4.0 |
| Ctrl+a :resize | resize region | |
| Ctrl+a :fit | fit screen size to new terminal size | Ctrl+a F is the same. Do after resizing xterm |
| Ctrl+a :remove | remove region | Ctrl+a X is the same |
| Ctrl+a tab | Move to next region | |
| Ctrl+a d | detach screen from terminal | Start screen with -r option to reattach |
| Ctrl+a A | set window title | |
| Ctrl+a x | lock session | Enter user password to unlock |
| Ctrl+a [ | enter scrollback/copy mode | Enter to start and end copy region. Ctrl+a ] to leave this mode |
| Ctrl+a ] | paste buffer | Supports pasting between windows |
| Ctrl+a > | write paste buffer to file | useful for copying between screens |
| Ctrl+a < | read paste buffer from file | useful for pasting between screens |
| Ctrl+a ? | show key bindings/command names | Note unbound commands only in man page |
| Ctrl+a : | goto screen command prompt | up shows last command entered |