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的0与”0″假与真awk真假 March 16, 2015 grep,sed,awk,perl等对正则表达式的支持的差别 January 25, 2017 sed空行规则二 June 15, 2016