在cmd中的txtfile中间添加一行 [英] Add a line in middle of txtfile in cmd

问题描述

这是一个文本文件 txtfile.txt

  line1 
 line2 
在此行后面添加
 line4 
 etc 
 etc 
  

我想创建一个批处理文件，可以在后添加一行，在此行后面添加和用户输入的信息。

例如：

 输入信息：asdf 
  

/ p>

  line1 
 line2 
在此行后面添加
 asdf 
 line4 
 etc 
 etc 
  

我认为基本过程是循环文件复制它，当我找到线，添加线，然后循环通过其余。我想知道如何做。

解决方案

  @ECHO OFF 
 SETLOCAL 
 SET / p info =enter info：
 :: read addafter line 
（
 FOR / fdelims =%% i IN（poison1.txt）DO （
 SET addafter = %% i 
 FOR / fdelims =%% n IN（'findstr / n^txtfile.txt）DO（
 SET line = %% n 
 SETLOCAL ENABLEDELAYEDEXPANSION 
 SET line =！line：*：=！
 ECHO（！line！
如果！line！==！addafter！ info％
 ENDLOCAL 
）
）
）> newfile.txt 
 
 FC newfile.txt txtfile.txt 
 
 GOTO：eof 
  

其中 poison1.txt 一行

 A line！of！] many<&> var * ied％poison ^ char; ac （ters）| like，a\\\
d + so = on
  

和txtfile.txt

• 读取 poison1.txt 文件中的行到 addafter


• 对于添加到我的文件中的每一行
  
  
  
  
  
  
  • 删除号码和第一个冒号（由 FINDSTR 添加）
  
  
  • 如果行与目标匹配，则输出该行
  
  如果行与目标匹配，则输出额外行
  

完成！

here's a text file txtfile.txt

line1
line2
add after this line
line4
etc
etc

i want to create a batch file which can add a line after add after this line with the user entered info. keeping the add after this line intact.

example:

enter info: asdf

and the file becomes

line1
line2
add after this line
asdf
line4
etc
etc

i think that the basic process would be to loop through the file copying it and when i find the line, adding the line and then looping through the rest. i want to know how to do it.

解决方案

@ECHO OFF
SETLOCAL
SET /p info="enter info : "
:: read addafter line
(
FOR /f "delims=" %%i IN (poison1.txt) DO (
SET addafter=%%i
FOR /f "delims=" %%n IN (' findstr /n "^" txtfile.txt') DO (
SET line=%%n
SETLOCAL ENABLEDELAYEDEXPANSION
SET line=!line:*:=!
ECHO(!line!
IF "!line!"=="!addafter!" ECHO(%info%
ENDLOCAL
)
)
)>newfile.txt

FC newfile.txt txtfile.txt

GOTO :eof

Where poison1.txt contains the one line

"A line !of! ] many < & >var*ied %poison ^ char;ac(ters) | like "," a\nd+so=on"

and txtfile.txt contains this line.

• Read the line from the poison1.txt file to addafter
• For each line in the add-to-me file
  
  • Number the line to catch empty lines
  • Remove the number and first colon (added by FINDSTR)
  • Output the line verbatim
  • if the line matches the target, output the extra line

done!

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