[分享]批处理在文本第三行添加指定内容

Batcher

【问题描述】

Settings.ini内容如下：

1. [/Script/Engine.GameUserSettings]
   
2. bUseDesiredScreenHeight=False
   
3. 
   
4. [ScalabilityGroups]
   
5. sg.ResolutionQuality=100.000000
   
6. sg.ViewDistanceQuality=0
   
7. sg.AntiAliasingQuality=0
   
8. sg.ShadowQuality=0
   
9. sg.PostProcessQuality=0
   
10. sg.TextureQuality=0
    
11. sg.EffectsQuality=0
    
12. sg.FoliageQuality=0

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需要在第二行下面添加一行：
GraphicsAPI=DX11_Enhanced

Batcher

方案1.bat

1. @echo off
   
2. setlocal enabledelayedexpansion
   
3. cd /d "%~dp0"
   
4. set "FileOld=Settings.ini"
   
5. set "FileNew=Settings_New.ini"
   
6. set "n=0"
   
7. (for /f "delims=" %%i in ('type "%FileOld%"') do (
   
8.     echo,%%i
   
9.     set /a n+=1
   
10.     if !n! equ 2 (
    
11.         goto :next
    
12.     )
    
13. ))>"%FileNew%"
    
14. 
    
15. :next
    
16. >>"%FileNew%" echo GraphicsAPI=DX11_Enhanced
    
17. >>"%FileNew%" more +2 "%FileOld%"

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Batcher

方案2.bat

1. @echo off
   
2. setlocal enabledelayedexpansion
   
3. cd /d "%~dp0"
   
4. set "FileOld=Settings.ini"
   
5. set "FileNew=Settings_New.ini"
   
6. set "n=0"
   
7. (for /f "tokens=1* delims=:" %%i in ('type "%FileOld%" ^| findstr /n .*') do (
   
8.     echo,%%j
   
9.     set /a n+=1
   
10.     if !n! equ 2 (
    
11.         echo,GraphicsAPI=DX11_Enhanced
    
12.     )
    
13. ))>"%FileNew%"

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Batcher

方案3.bat

1. @echo off
   
2. cd /d "%~dp0"
   
3. set "FileOld=Settings.ini"
   
4. set "FileNew=Settings_New.ini"
   
5. (for /f "tokens=1* delims=:" %%i in ('type "%FileOld%" ^| findstr /n .*') do (
   
6.     echo,%%j
   
7.     if %%i equ 2 (
   
8.         echo,GraphicsAPI=DX11_Enhanced
   
9.     )
   
10. ))>"%FileNew%"

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Batcher

方案4 使用命令行工具 sed.exe
http://bcn.bathome.net/s/tool/index.html?key=sed

1. sed "3iGraphicsAPI=DX11_Enhanced" "Settings.ini" > "Settings_New.ini"

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