如何列出正在运行的屏幕会话? [英] How to list running screen sessions?

问题描述

我有一堆服务器，我在这些服务器上使用screen进行实验.步骤如下:

I have a bunch of servers, on which I run experiments using screen. The procedure is the following :

1. ssh到服务器XXX
2. 启动screen
3. 在几个标签中开始实验
4. 分离screen
5. 断开与服务器的连接

1. ssh to server XXX
2. launch screen
3. start experiments in a few tabs
4. detach screen
5. disconnect from the server

在运行实验的同时，我可以通过ssh访问所有服务器并列出正在运行的进程(使用top或ps)来轻松找到它们在哪些服务器上.

While the experiments are running, I can easily find on which servers they are by sshing to all servers and listing my running processes (using top or ps).

但是，一旦实验完成，我如何才能找到在哪个服务器上打开了屏幕会话(以便可以查看输出，重新启动它们，等等)?

However, once the experiments are finished, how could I find on which servers I have a screen session opened (so that I can have a look at the output, relaunch them, etc.) ?

PS:我的实验也将其输出也打印到文件中……但这不是我要问的重点.

PS: my experiments do print their output to files, too... but this is not the point of my question.

推荐答案

要列出某个用户的所有屏幕会话，请以该用户身份运行以下命令:

To list all of the screen sessions for a user, run the following command as that user:

screen -ls

要查看特定计算机上的所有屏幕会话，您可以执行以下操作:

To see all screen sessions on a specific machine you can do:

ls -laR /var/run/screen/

我在我的机器上得到了

gentle ~ # ls -laR /var/run/screen/

/var/run/screen/:
total 1
drwxrwxr-x  4 root utmp   96 Mar  1  2005 .
drwxr-xr-x 10 root root  840 Feb  1 03:10 ..
drwx------  2 josh users  88 Jan 13 11:33 S-josh
drwx------  2 root root   48 Feb 11 10:50 S-root

/var/run/screen/S-josh:
total 0
drwx------ 2 josh users 88 Jan 13 11:33 .
drwxrwxr-x 4 root utmp  96 Mar  1  2005 ..
prwx------ 1 josh users  0 Feb 11 10:41 12931.pts-0.gentle

/var/run/screen/S-root:
total 0
drwx------ 2 root root 48 Feb 11 10:50 .
drwxrwxr-x 4 root utmp 96 Mar  1  2005 ..

这是Unixy对Unix套接字的一种非常出色的使用，它封装在文件系统权限中以处理安全性，状态和流.

This is a rather brilliantly Unixy use of Unix Sockets wrapped in filesystem permissions to handle security, state, and streams.

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