https://blog.faceutil.com/2017/04/13/%eb%ac%b4%ec%84%a4%ec%b9%98-pc-auto-shutdown-v5-7-%ed%95%9c%ea%b8%80%ed%8c%90-%ec%bb%b4%ed%93%a8%ed%84%b0-%ec%9e%90%eb%8f%99-%ec%a2%85%eb%a3%8c-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%a8-%e2%80%b0/