sed – 处理备用线bash
发布时间：2020-12-14 01:18:02 所属栏目：Linux 来源：网络整理
导读：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 $cat inpu
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我有这样的文件
line1 this is line1 line2 this is line2 line3 this is line3 我想使用awk或sed删除每个备用行的尾随换行符,以便像这样合并它们 line1: this is line1 line2: this is line2 line3: this is line3 我怎么用awk或sed做到这一点 解决方法$cat input
line1
this is line1
line2
this is line2
line3
this is line3
$awk 'NR%2==1 {prev=$0} NR%2==0 {print prev ": " $0} END {if (NR%2==1) {print $0 ":"}}' input
line1: this is line1
line2: this is line2
line3: this is line3
$
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