sudo -i, 防止 permission denied 报错
@@ -135,7 +135,9 @@ hosts 文件在每个系统的位置不一,详情如下:
#### GNU(Ubuntu/CentOS/Fedora)
`sudo -i`
`sed -i "/# GitHub520 Host Start/Q" /etc/hosts && curl https://raw.hellogithub.com/hosts >> /etc/hosts`
`exit`
#### BSD/macOS
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