仅在Mac OS X上关机(不注销或重启)时运行脚本

Question

有没有办法只在关机时运行脚本？

我的意思是,只有当计算机真正关闭到关闭状态时.仅执行注销或重新启动时,不应运行此脚本.

Answer 1

几天前我在github上发布了一个能够在启动/关闭时执行的配置/脚本.

基本上在Mac OS X上你可以/应该使用System wide and per-user daemon/agent configuration file(plist)和bash脚本文件.这是您可以使用的plist文件的示例:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key><string>boot.shutdown.script.name</string>

<key>ProgramArguments</key>
<array>
  <string>SCRIPT_PATH/boot-shutdown.sh</string>
</array>

<key>RunAtLoad</key>
<true/>

<key>StandardOutPath</key>
<string>LOG_PATH/boot-shutdown.log</string>

<key>StandardErrorPath</key>
<string>LOG_PATH/boot-shutdown.err</string>

</dict>
</plist>

您可以将此文件放入/Library/LaunchDaemons.有许多目录可以放置plist文件,它取决于您需要什么,进程的权限等等.

~/Library/LaunchAgents         Per-user agents provided by the user.
/Library/LaunchAgents          Per-user agents provided by the administrator.
/Library/LaunchDaemons         System wide daemons provided by the administrator.
/System/Library/LaunchAgents   Mac OS X Per-user agents.
/System/Library/LaunchDaemons  Mac OS X System wide daemons.

boot-shutdown.sh每次启动/关闭时都会加载并执行此脚本.

#!/bin/bash
function shutdown()
{

  # INSERT HERE THE COMMAND YOU WANT EXECUTE AT SHUTDOWN OR SERVICE UNLOAD

  exit 0
}

function startup()
{

  # INSERT HERE THE COMMAND YOU WANT EXECUTE AT STARTUP OR SERVICE LOAD

  tail -f /dev/null &
  wait $!
}

trap shutdown SIGTERM
trap shutdown SIGKILL

startup;

然后调用launchctl加载和卸载守护进程/代理的命令.

sudo launchctl load -w /Library/LaunchDaemons/boot-shutdown-script.plist