sed – 处理备用线bash

概述我有这样的文件 line1this is line1line2this is line2line3this is line3 我想使用awk或sed删除每个备用行的尾随换行符,以便像这样合并它们 line1: this is line1 line2: this is line2line3: this is line3 我怎么用awk或sed做到这一点 $cat input l 我有这样的文件

line1this is line1line2this is line2line3this is line3

我想使用awk或sed删除每个备用行的尾随换行符,以便像这样合并它们

line1: this is line1    line2: this is line2line3: this is line3

我怎么用awk或sed做到这一点

解决方法

$cat input line1this is line1line2this is line2line3this is line3$awk 'NR%2==1 {prev=} NR%2==0 {print prev ": " } END {if (NR%2==1) {print  ":"}}' inputline1: this is line1line2: this is line2line3: this is line3$

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