Answers:
〜/ bin / timemachine:
#!/bin/bash
d="Time Machine" # (change this to match the name of your backup drive)
diskutil mount "$d" && tmutil startbackup -b && diskutil eject "$d"
〜/ Library / LaunchAgents / timemachine_eject.plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd>
<plist version="1.0">
<dict>
<key>Label</key>
<string>timemachine_eject</string>
<key>Program</key>
<string>/Users/username/bin/timemachine</string> <!-- Replace "username" with your username. "~/bin/timemachine" doesn't work -->
<key>StartInterval</key>
<integer>120</integer> <!-- run every two minutes for testing. -->
<!-- Change this to a higher number like 43200 (run every 12 hours) once you've confirmed it works. -->
</dict>
</plist>
使脚本可执行,卸载默认的plist,然后加载新的plist:
chmod +x ~/bin/timemachine
sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.backupd-auto.plist
launchctl load ~/Library/LaunchAgents/timemachine_eject.plist
每当您要更改plist文件时,都必须卸载并加载它:
launchctl unload ~/Library/LaunchAgents/timemachine_eject.plist
launchctl load ~/Library/LaunchAgents/timemachine_eject.plist
也许有更好的方法,但是一种解决方案可能是使用Applescript。备份后,我还没有找到任何运行applescript的方法,但是您可以:
do shell script "/System/Library/CoreServices/backupd.bundle/Contents/Resources/backupd-helper >/dev/null 2>&1 &"
eject disk somedrivename
如果您希望定期执行此操作,则可以将其附加到cron作业中。