bat文件修改或替換文件內容

rem 定義變量延遲環境，關閉回顯 
@echo off&setlocal enabledelayedexpansion 
rem 讀取a.txt所有內容 
for /f "eol=* tokens=*" %%i in (a.txt) do ( 
rem 設置變量a為每行內容 
set a=%%i 
rem 如果該行有123，則將其改為456 
set "a=!a:123=456!" 
rem 把修改后的全部行存入$ 
echo !a!>>$) 
rem 用$的內容替換原來a.txt內容 
move $ a.txt

 

出處：https://blog.csdn.net/everdayPHP/article/details/78919020

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查找固定的內容並替換的為固定文本的情況：

文件A.txt是需要替換的文件，運行下面這個批處理：

@echo off&setlocal EnableDelayedExpansion
for /f "delims=" %%b in ('type A.txt') do (
set "str=%%b"&set "str=!baistr:ABC=123!"&set "str=!str:XYZ=AFK!"
echo !str! >>new_A.txt
)
start new_A.txt

 

下面這個是不去空行的，有必要你就用吧，有點長！你復制過去刪除多余空格，不行留郵箱發給你。百度老是存在這個問題，貼出來再復制回去格式就不一樣了。真氣人！！！

@echo off&setlocal EnableDelayedExpansion
for /f "delims=" %%a in ('findstr /n .* A.txt') do (
set "str=%%a"
set "str=!str:ABC=123!"
set "str=!str:XYZ=AFK!"
echo !str:~1! >>tmp.txt
)
for /f "delims=" %%b in ('type tmp.txt') do (
set "str=%%b"
if "!str!"==": " (
call echo. >>new_A.txt
) else (
echo !str:~1! >>new_A.txt
))
del tmp.txt&start new_A.txt

 

出處：https://zhidao.baidu.com/question/84256975.html

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根據上面的參考，自己稍微修改點，可以適用於自己的需求的程序

 自己聯系和測試程序

rem 定義變量延遲環境，關閉回顯 
@echo off
setlocal enabledelayedexpansion 

::goto :aa
::goto :bb2
goto :cc


rem 讀取a.txt所有內容 
for /f "eol=* tokens=*" %%i in ('type test.txt') do ( 
rem 設置變量a為每行內容 
set a=%%i
rem 如果該行有123，則將其改為456 
echo !a!--
set "a=!a:dd*=456!"
rem 把修改后的全部行存入$ 
echo !a!>>$)
rem 用$的內容替換原來a.txt內容 
move $ test.txt
goto :eof


:aa
for %%i in (test.txt) do set file=%%~fi
echo ==========
for /f "delims=" %%i in ('type test.txt') do (
set str=%%i
set "str=!str:dd=456!"
echo !str!>>$
)
move $ test.txt
goto :eof


:bb1
set old=
for /f "delims=" %%a in ('findstr .* test.txt') do (
set "str=%%a"
set "str=!str:ABC=123!"
set "str=!str:XYZ=AFK!"
echo !str!
)



goto :eof


:bb2
set old=
rem 查找並匹配最后一行，包含king的字符串
for /f "eol=*" %%a in ('findstr /b "king" test.txt') do (set "old=%%a")
echo %old%===============
rem 再次查找完全陪陪的行，並替換queen的字符串
for /f "delims=" %%b in ('type test.txt') do (
set "str=%%b"
if "!str!"=="%old%" (set str=queen[00-11-22])
echo !str!>>$
)
move $ test.txt
goto :eof


:cc
set aa=kjk  dfdasf jlksj ij hgn my name AA
set bb=my
echo.%aa% | findstr /C:"%bb%"
goto :eof