在bash脚本使用屏幕 [英] Using screen in bash script

问题描述

我跑，我用一种超然的屏幕实例，离开它运行的远程服务器上的游戏服务器。
现在我创建可用于关闭服务器，备份所有重要的文件，并重新启动了一个剧本，但是我在与处理屏幕中的一些困难。

I'm running a game server on a remote server where I use a detached screen instance to leave it running. I'm now creating a script that can be used to shut down the server, back up all the vital files and start it up again, however I'm having a few difficulties with dealing with the screen.

我认为我可以（在服务器已经被关闭）切换到分离的屏幕在脚本中调用屏幕-r脚本。
但是，这似乎并没有工作，因为如果我运行外屏脚本，它只是启动服务器在该会话中。

I assumed that I could just switch into the detached screen in the script (after the server had already been shut down) by calling screen -r in the script. But that doesn't seem to work because if I run the script from outside screen it just launches the server in that session.

screen -r
cd ~/servers/StarMade/
sh StarMade-dedicated-server-linux.sh
screen -d

这是我的想法会做的伎俩，但事实并非如此。也许有人可以帮我在这里。我不是一个bash专家。事实上，这是propably我的第一个bash脚本，不包括Hello World的。谢谢你。

This is what I thought would do the trick but it doesn't. Maybe somebody can help me out here. I'm not a bash expert. In fact this is propably my first bash script that doesn't include "Hello World". Thanks.

推荐答案

您的脚本，在你的榜样，会被你的销售，而不是一个在屏幕上得到执行。你需要告诉运转画面读取文件并执行它 - 这就是-X选项是什么

Your script, as in your example, will get executed by your sell, not the one in the screen. You need to tell the running screen to read a file and execute it - that's what the -X option is for.

尝试

tempfile=$(mktemp)
cat > $tempfile <<EOF
cd ~/servers/StarMade/
sh StarMade-dedicated-server-linux.sh
EOF
screen -X readbuf $tempfile
screen -X paste .
rm -f $tempfile

您可以将屏幕在第二终端会话运行，看看会发生什么。

You can leave screen running in a 2nd terminal session to see what happens.

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