20170215-4 选题

2025-01-28 23:20:10 +08:00 · 2017-02-15 09:49:09 +08:00 · 2017-02-15 09:49:09 +08:00 · 0bb73748e5
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+Basic screen command usage and examples
+============================================================
+
+
+ ![linux screen command usage and examples](https://www.rosehosting.com/blog/wp-content/uploads/2017/02/linux-screen-usage-examples.jpg) 
+
+Screen is a very useful command that offers the ability to use multiple shell windows (sessions) from a single SSH session. When the session is detached or there is a network disruption, the process that is started in a screen session will still run and you can re-attach to the screen session at any time. This also comes in handy if you want to run a long process persistently or connect to shell sessions from multiple locations.
+
+In this article, we will show the basics of installing and using screen on a Linux VPS.
+
+### How to install screen
+
+Screen comes preinstalled on some of the popular distributions. You can check if it is installed on your server using the following command
+
+```
+screen -v
+Screen version 4.00.03 (FAU)
+```
+
+If you do not have screen to the VPS, you can easily install it using the package manager provided by the OS.
+
+### [CentOS][4]/RedHat/Fedora
+
+```
+yum -y install screen
+```
+
+### [Ubuntu][5]/[Debian][6]
+
+```
+apt-get -y install screen
+```
+
+### How to start a screen session
+
+You can start screen by typing ‘screen’ at the command prompt and a new screen session will be started which looks the same as the command prompt
+
+```
+screen
+```
+
+It is a good practice to start screen sessions with descriptive names so you can easily remember which process is running in the session. To create a new session with a session name run the following command
+
+```
+screen -S name
+```
+
+and replace ‘name’ with a meaningful name for your session.
+
+### Detach from screen session
+
+To detach from the current screen session you can press ‘Ctrl-A‘ and ‘d‘ on your keyboard. All screen sessions will still be active and you can re-attach to them at any time later.
+
+### Reattach to screen session
+
+If you have detached from a session or your connection is interrupted for some reason, you can easily re-attach by executing the following command:
+
+```
+screen -r
+```
+
+If you have multiple screen sessions you can list them with ‘ls’
+
+```
+screen -ls
+
+There are screens on:
+7880.session    (Detached)
+7934.session2   (Detached)
+7907.session1   (Detached)
+3 Sockets in /var/run/screen/S-root.
+```
+
+In our example, we have three active screen sessions. So, if you want to restore the session ‘session2’ you can execute
+
+```
+screen -r 7934
+```
+
+or you can use the screen name
+
+```
+screen -r -S session2
+```
+
+### Terminate screen session
+
+There are several ways to terminate the screen session. You can do it by pressing ‘Ctrl‘ + ‘d‘ on your keyboard or use the ‘exit’ command line command.
+
+To see all useful features of the screen command you can check screen’s man page.
+
+```
+man screen
+
+NAME
+screen - screen manager with VT100/ANSI terminal emulation
+
+SYNOPSIS
+screen [ -options ] [ cmd [ args ] ]
+screen -r [[pid.]tty[.host]]
+screen -r sessionowner/[[pid.]tty[.host]]
+```
+
+* * *
+
+Of course, you don’t have to do any of this if you use one of our [Linux VPS hosting][9] services, in which case you can simply ask our expert Linux admins to do this for you. They are available 24×7 and will take care of your request immediately.
+
+PS. If you liked this post please share it with your friends on the social networks using the buttons below or simply leave a comment in the comment section. Thanks.
+
+--------------------------------------------------------------------------------
+
+via: https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/
+
+作者：[rosehosting.com][a]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/
+[1]:https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/
+[2]:https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/#comments
+[3]:https://www.rosehosting.com/blog/category/tips-and-tricks/
+[4]:https://www.rosehosting.com/centos-vps.html
+[5]:https://www.rosehosting.com/ubuntu-vps.html
+[6]:https://www.rosehosting.com/debian-vps.html
+[7]:https://plus.google.com/share?url=https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/
+[8]:http://www.linkedin.com/shareArticle?mini=true&url=https://www.rosehosting.com/blog/basic-screen-command-usage-and-examples/&title=Basic%20screen%20command%20usage%20and%20examples&summary=Screen%20is%20a%20very%20useful%20command%20that%20offers%20the%20ability%20to%20use%20multiple%20shell%20windows%20(sessions)%20from%20a%20single%20SSH%20session.%20When%20the%20session%20is%20detached%20or%20there%20is%20a%20network%20disruption,%20the%20process%20that%20is%20started%20in%20a%20screen%20session%20will%20still%20run%20and%20you%20can%20re-attach%20to%20the%20...
+[9]:https://www.rosehosting.com/linux-vps-hosting.html