sed删除重复行 文本去重是非常简单的,但如果我们需要直接修改文本去重呢? root@mail ~ # cat a 1 2 2 3 3 3 root@mail ~ # sed -i '$!N;/^\(.*\)\n\1$/!P;D' a root@mail ~ # cat a 1 2 3 Tags: sed删除重复行, sed去重, sed详解 Read more articles Previous Postsed -n选项 Next Postsed删除关键字的上一行 You Might Also Like awk数组awk详解 January 16, 2015 去重复空行 March 18, 2016 awk偶数行二 March 19, 2015