Question

我有一个包含值的文本文件，我正在尝试创建并填充文件中特定行的列。更确切地说，输入如下：

<name>RELATIVE 1</name>
0.624790,-0.000000,0
0.493925,0.591035,0
0.363039,1.182079,0
<name>RELATIVE 2</name>
-24.621334,0.000000,0
-24.752199,0.591031,0
-24.883085,1.182072,0
<name>RELATIVE 3</name>
-49.868542,0.000000,0
-49.999397,0.591014,0
-50.130271,1.182033,0

，预期输出应为：

0.624790,-0.000000,0 <name>RELATIVE 1</name>
0.493925,0.591035,0 <name>RELATIVE 1</name>
0.363039,1.182079,0 <name>RELATIVE 1</name>
-24.621334,0.000000,0 <name>RELATIVE 2</name>
-24.752199,0.591031,0 <name>RELATIVE 2</name>
-24.883085,1.182072,0 <name>RELATIVE 2</name>
-49.868542,0.000000,0 <name>RELATIVE 3</name>
-49.999397,0.591014,0 <name>RELATIVE 3</name>
-50.130271,1.182033,0 <name>RELATIVE 3</name>

解决方案可以是Bash，Awk或Sed。

提前感谢您的帮助。

Answer 1

使用awk：

awk '/^</{s=$0;next}{print $0,s}' file.txt

当一行以<开头时，将变量s设置为该行的内容并跳至下一行。在其他行上，打印行的内容，然后打印s。

的内容

Answer 2

您可以尝试awk

awk '/name/{s=$0}!/name/{print $0,s}' file

Answer 3

sed '#n
 /<name>/ {h
   b
   }
 G
 s/\n/ /p' YourFile

使用保留缓冲区

将最新的 name 行添加到当前行

Linux从行创建列

3 个答案: