使用brew安装sleepwatcher

brew install sleepwatcher

设置自启动

brew services start sleepwatcher

查看sleepwatcher进程是否启动

ps aux | grep sleepwatcher

可以看到监听了两个脚本文件，分别是.sleep 和 .wakeup，对应睡眠和唤醒。

root            40992   0.0  0.0  4399356    796 s006  S+    1:41PM   0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn sleepwatcher
root            40856   0.0  0.0  4341932   3824   ??  S     1:41PM   0:00.01 /usr/local/sbin/sleepwatcher -V -s ~/.sleep -w ~/.wakeup

创建脚本文件

cd ~
touch .sleep
touch .wakeup
sudo chmod +x .sleep
sudo chmod +x .wakeup

.sleep中写入代码

/usr/bin/sntp -sS time.apple.com

Done!