只运行在关机脚本在Mac OS X（未注销或重新启动） [英] Run a script only at shutdown (not log off or restart) on Mac OS X

问题描述

有什么办法仅在关机时运行脚本？

Is there any way to run a script only at shutdown?

我的意思是，只有当计算机真的关停为关闭状态。这样做仅仅是注销或重新启动时，此脚本应该不能运行。

I mean, only when the computer is really shutting down to off state. This script should not run when doing just a log off or restart.

推荐答案

下面是不工作（我只是测试它）的方式，但它是没有经验的人相当的技术，而不是......我把一个包装器/ sbin目录/关闭。这将即使你关闭从GUI苹果菜单工作你的Mac。

Here is a way that does work (I just tested it) but it is quite technical and not for inexperienced people... I put a wrapper around /sbin/shutdown. This will work even if you shutdown your Mac from the Apple menu in the GUI.

基本上，你需要苏来根，这样，和重命名现有的，苹果提供的关机二进制 shutdown.orig 。

Basically, you need to su to root, like this, and rename the existing, Apple-supplied shutdown binary to shutdown.orig.

su -
cd /sbin
mv shutdown shutdown.orig

然后创建一个名为关机 A bash脚本，你想要做什么，然后再高管原Apple苹果提供的关机二进制文件。

Then you create a bash script called shutdown that does what you want first, then execs the original Apple-supplied shutdown binary.

#!/bin/bash
Do something you want done before shutdown
exec /sbin/shutdown.orig "$@"

有三件事情需要提防...

There are three things to watch out for...

1. Make all the permissions the same on shutdown as shutdown.orig
2. Parse the parameters to the originl shutdown and see if `-r` is one of them as this means it is a `restart` shutdown. You will also have to pass through the other parameters that Apple calls the script with - if any.
3. Apple may feel at liberty to overwrite your lovely, shiny, new `shutdown` script when updating OSX, so maybe abstract out the bulk of your personal shutdown script into another place so that you can easily re-insert a single-line call to it if/when Apple overwrites it at some point.

小心！并做好备份第一！

Be careful! And make a backup first!

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