如何在启动时运行 shell 脚本 [英] How to run a shell script at startup

问题描述

在 Amazon S3 Linux 实例上，我有两个脚本，名为 start_my_app 和 stop_my_app 启动和停止永远(依次运行我的 Node.js 应用程序).我使用这些脚本手动启动和停止我的 Node.js 应用程序.到目前为止一切顺利.

On an Amazon S3 Linux instance, I have two scripts called start_my_app and stop_my_app which start and stop forever (which in turn runs my Node.js application). I use these scripts to manually start and stop my Node.js application. So far so good.

我的问题:我还想设置它以便在系统启动时运行 start_my_app.我知道我需要在 init.d 中添加一个文件，并且我知道如何将它符号链接到 rc.d 中的正确目录，但我无法弄清楚我放在 init.d 中的文件实际上需要什么.我认为它应该只是一行，例如 start_my_app，但这对我不起作用.

My problem: I also want to set it up such that start_my_app is run whenever the system boots up. I know that I need to add a file inside init.d and I know how to symlink it to the proper directory within rc.d, but I can't figure out what actually needs to go inside the file that I place in init.d. I'm thinking it should be just one line, like, start_my_app, but that hasn't been working for me.

推荐答案

在您放入 /etc/init.d/ 的文件中，您必须将其设置为可执行:

In the file you put in /etc/init.d/ you have to set it executable with:

chmod +x /etc/init.d/start_my_app

感谢@meetamit，如果它没有运行，你必须创建一个符号链接到/etc/rc.d/

Thanks to @meetamit, if this does not run you have to create a symlink to /etc/rc.d/

ln -s /etc/init.d/start_my_app /etc/rc.d/

请注意，在最新的 Debian 上，这将不起作用，因为您的脚本必须符合 LSB(至少提供以下操作:启动、停止、重新启动、强制重新加载和状态):https://wiki.debian.org/LSBInitScripts

Please note that on latest Debian, this will not work as your script have to be LSB compliant (provide, at least, the following actions: start, stop, restart, force-reload, and status): https://wiki.debian.org/LSBInitScripts

请注意，您应该放置脚本的绝对路径而不是相对路径，它可能会解决意外问题:

As a note, you should put the absolute path of your script instead of a relative one, it may solves unexpected issues:

/var/myscripts/start_my_app

并且不要忘记在该文件的顶部添加:

And don't forget to add on top of that file:

#!/bin/sh

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