Ubuntu删除多余旧内核

https://www.jianshu.com/p/81fbfb9cde8f

sudo dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

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来源： https://www.cnblogs.com/sinferwu/p/14696319.html