如何通过线一直线合并两个文件 [英] how to merge two files consistently line by line

问题描述

我有两个文件（ FILE1.TXT ＆放大器; FILE2.TXT ），文件只是例子

如何合并两个文件，​​以创建文件 - merge_files.txt 为例3

我现在写剧本KSH，所以撤并可以用KSH下，awk，sed的，perl的单行...等来完成。

背景 - 为什么我需要合并的文件：我的目标是要重命名的旧文件（适用于第一个字段存在）为新文件（在第二场存在），

例1

 更FILE1.TXT/etc/port1-192.9.200.1-255.555.255.0
/etc/port2-192.9.200.1-255.555.255.0
/etc/port3-192.9.200.1-255.555.255.0
/etc/port4-192.9.200.1-255.555.255.0
/etc/port5-192.9.200.1-255.555.255.0
。
。
。
。
 

示例2

 更FILE2.TXT/etc/port1-192.90.2.1-255.555.0.0
/etc/port2-192.90.2.1-255.555.0.0
/etc/port3-192.90.2.1-255.555.0.0
/etc/port4-192.90.2.1-255.555.0.0
/etc/port5-192.90.2.1-255.555.0.0
。
。
。
。
 

例3

 更merge_files.txt /etc/port1-192.9.200.1-255.555.255.0 /etc/port1-192.90.2.1-255.555.0.0
 /etc/port2-192.9.200.1-255.555.255.0 /etc/port2-192.90.2.1-255.555.0.0
 /etc/port3-192.9.200.1-255.555.255.0 /etc/port3-192.90.2.1-255.555.0.0
 /etc/port4-192.9.200.1-255.555.255.0 /etc/port4-192.90.2.1-255.555.0.0
 /etc/port5-192.9.200.1-255.555.255.0 /etc/port5-192.90.2.1-255.555.0.0
 。
 。
 。
 。
 。
 

例4（merge_files.txt结构）

 第一场第二场 旧文件新文件
 

解决方案

您可以使用粘贴由侧方的文件格式为：

  $粘贴-dFILE1.TXT FILE2.TXT
/etc/port1-192.9.200.1-255.555.255.0 /etc/port1-192.90.2.1-255.555.0.0
/etc/port2-192.9.200.1-255.555.255.0 /etc/port2-192.90.2.1-255.555.0.0
/etc/port3-192.9.200.1-255.555.255.0 /etc/port3-192.90.2.1-255.555.0.0
/etc/port4-192.9.200.1-255.555.255.0 /etc/port4-192.90.2.1-255.555.0.0
/etc/port5-192.9.200.1-255.555.255.0 /etc/port5-192.90.2.1-255.555.0.0
 

例如：

  $粘贴-dFILE1.TXT FILE2.TXT |而从阅读;做回声MV$ {}从$ {}来; DONE
MV /etc/port1-192.9.200.1-255.555.255.0 /etc/port1-192.90.2.1-255.555.0.0
MV /etc/port2-192.9.200.1-255.555.255.0 /etc/port2-192.90.2.1-255.555.0.0
MV /etc/port3-192.9.200.1-255.555.255.0 /etc/port3-192.90.2.1-255.555.0.0
MV /etc/port4-192.9.200.1-255.555.255.0 /etc/port4-192.90.2.1-255.555.0.0
MV /etc/port5-192.9.200.1-255.555.255.0 /etc/port5-192.90.2.1-255.555.0.0
 

当然，你会希望在某些安全检查抛出（ [-f$ {}从] ，...）。

免责声明：只工作，如果没有空间在您的文件名

I have two files (file1.txt & file2.txt ) , files are only examples .

How to merge the two files , in order to create the file - merge_files.txt as example 3

I writing now ksh script , so merge can be done with ksh,awk,sed,perl one liner ...etc

Background - why I need to merge the files : my target is to rename the OLD file (exist in first field) to NEW file (exist in second field) ,

example1

more file1.txt

/etc/port1-192.9.200.1-255.555.255.0
/etc/port2-192.9.200.1-255.555.255.0
/etc/port3-192.9.200.1-255.555.255.0
/etc/port4-192.9.200.1-255.555.255.0
/etc/port5-192.9.200.1-255.555.255.0
.
.
.
.

example2

more file2.txt

/etc/port1-192.90.2.1-255.555.0.0
/etc/port2-192.90.2.1-255.555.0.0
/etc/port3-192.90.2.1-255.555.0.0
/etc/port4-192.90.2.1-255.555.0.0
/etc/port5-192.90.2.1-255.555.0.0
.
.
.
.

example3

 more merge_files.txt



 /etc/port1-192.9.200.1-255.555.255.0  /etc/port1-192.90.2.1-255.555.0.0
 /etc/port2-192.9.200.1-255.555.255.0  /etc/port2-192.90.2.1-255.555.0.0
 /etc/port3-192.9.200.1-255.555.255.0  /etc/port3-192.90.2.1-255.555.0.0
 /etc/port4-192.9.200.1-255.555.255.0  /etc/port4-192.90.2.1-255.555.0.0
 /etc/port5-192.9.200.1-255.555.255.0  /etc/port5-192.90.2.1-255.555.0.0
 .
 .
 .
 .
 .

example4 (merge_files.txt structure)

 first field                           second field

 OLD file                              NEW file

解决方案

You can use paste to format the files side by side:

$ paste -d" " file1.txt file2.txt
/etc/port1-192.9.200.1-255.555.255.0 /etc/port1-192.90.2.1-255.555.0.0
/etc/port2-192.9.200.1-255.555.255.0 /etc/port2-192.90.2.1-255.555.0.0
/etc/port3-192.9.200.1-255.555.255.0 /etc/port3-192.90.2.1-255.555.0.0
/etc/port4-192.9.200.1-255.555.255.0 /etc/port4-192.90.2.1-255.555.0.0
/etc/port5-192.9.200.1-255.555.255.0 /etc/port5-192.90.2.1-255.555.0.0

E.g.:

$ paste -d" " file1.txt file2.txt | while read from to; do echo mv "${from}" "${to}"; done
mv /etc/port1-192.9.200.1-255.555.255.0 /etc/port1-192.90.2.1-255.555.0.0
mv /etc/port2-192.9.200.1-255.555.255.0 /etc/port2-192.90.2.1-255.555.0.0
mv /etc/port3-192.9.200.1-255.555.255.0 /etc/port3-192.90.2.1-255.555.0.0
mv /etc/port4-192.9.200.1-255.555.255.0 /etc/port4-192.90.2.1-255.555.0.0
mv /etc/port5-192.9.200.1-255.555.255.0 /etc/port5-192.90.2.1-255.555.0.0

Of course you would want to throw in some safety checks ([ -f "${from}" ], ...).

Disclaimer: Works only if there are no spaces in your filenames.

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