screen简单应用1

• 建立screen

screen -S DL

• 查看当前用户所有screen

screen -ls

• 常用命令
  

screen command	Task
Ctrl+a c	Create new window
Ctrl+a k	Kill the current window / session
Ctrl+a w	List all windows
Ctrl+a 0-9	Go to a window numbered 0 9, use Ctrl+a w to see number
Ctrl+a Ctrl+a	Toggle / switch between the current and previous window
Ctrl+a S	Split terminal horizontally into regions and press Ctrl+a c to create new window there
Ctrl+a :resize	Resize region
Ctrl+a :fit	Fit screen size to new terminal size. You can also hit Ctrl+a F for the the same task
Ctrl+a :remove	Remove / delete region. You can also hit Ctrl+a X for the same taks
Ctrl+a tab	Move to next region
Ctrl+a D (Shift-d)	Power detach and logout
Ctrl+a d	Detach but keep shell window open
Ctrl-a Ctrl-\	Quit screen
Ctrl-a ?	Display help screen i.e. display a list of commands

• 翻页

你可以加入~/.screenrc

defscrollback 5000

也可以使用-h 5000来定义回滚长度

更可以直接Ctrl+a esc进入copy模式

Ctrl+a i 可以查看当前screen的信息和回滚buffer的大小

• screen操作日志

Ctrl+a H
会在当前目录下产生screenlog.0

想要查看可以先cp screenlog.0{,.bk}
然后cat screenlog.0.bk,否则会有循环

如果你less或者vim它，会发现它包括颜色的特殊字符，想要去除的话，使用下列命令
perl -ne 's/\x1b[[()=][;?0-9]*[0-9A-Za-z]?//g;s/\r//g;s/\007//g;print' < screenlog.0.bk