ubuntu 18經常使用優化配置 筆記

#修改源爲清華大學 \cp -f /etc/apt/sources.list /etc/apt/sources.list_bak_`date +"%Y_%m_%d_%H_%M_%S"`; echo 'deb http://archive.ubuntu.com/ubuntu/ bionic main restricted # deb-src http://archive.ubuntu.com/ubu

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