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This article mainly explains "how to use the screen command in Centos system". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "how to use the screen command in the Centos system".

Screen is a good thing. I've been using it these days. Screen is called a full-screen window manager, which can easily achieve the effect of multiple virtual terminals on a physical terminal.

If you encounter some more time-consuming programs, but can not always open the computer to observe him, always have to turn off the computer after work and go, then screen will come in handy.

1. If you open a window in screenCRT and run a program, the program will be destroyed automatically when you log out.

two。 Using nohup can solve this problem, put the program in the background, check nohup.out to see how the program is running, but using nohup to put the program in the background, you can no longer switch programs to the foreground, and screen can.

How to use it:

1. Install, centos is not installed by default, install it.

two。 Enter screen.

Enter screen directly and enter, and a new terminal will be entered at this time. You can do jobs that run for a long time.

3. Return to the primary terminal (screen is still running in the background)

Ctrl+A then press the D screen to display [detached]

4. Return to screen

Screen-ls

There is a screen on:

18245.pts-1.imobile-sv006-200 (Detached)

1 Socket in / var/run/screen/S-root.

You can see all the screen socket, which can be returned using screen-r 18245.

5. Completely exit the screenscreen terminal and enter exit. Just display [screen is terminating] on the screen

6. Screen sharing, collaborative work

One of the users, screen-S ipcpu, uses a named socket for easy input.

Another user, screen-x ipcpu, can work together, and the actions of one side will be displayed on the other screen.

Other commands of screen

Ctrl-a? Summary of help for each featur

Ctrl-a c create a new window (terminal)

Ctrl-a Ctrl-n and Ctrl-a Ctrl-p switch to the next or previous window

Ctrl-a Ctrl-N N is a number from 0 to 9, used to switch to the corresponding window

Ctrl-a "gets a navigable list of all running window

Ctrl-an a knows the wrong Ctrl-a

Ctrl-a Ctrl-d disconnects all sessions, and all tasks in the session run in the background

Password locking column screen terminal for Ctrl-a x

= =

Postscript

In the process of using screen, we often encounter the problem of "splash screen", which can be turned off.

Turn it off quickly: that is, type CTRL + an and then CTRL + g.

Permanent shutdown: modify / etc/screenrc join

Vbell off

In fact, this is very similar to the visualbell function in vi. To turn off the splash screen in vi, use the set novisualbell command.

At this point, I believe you have a deeper understanding of "the use of screen commands in the Centos system". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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