Question

我正在尝试使用批处理脚本重命名多个文件。例：在28451WZ之前在284_51WZ之后

到目前为止，我知道如何插入后缀和前缀，但无法在特定位置插入字符。

@echo off for %%A in (*.pdf ^/ find /i /v ) do ren "%%~fA" "-%%~nA.*"

Answer 1

使用cmd。

的内置字符串替换功能

@echo off

echo Setting envar to 'helloworld'
set "envar=helloworld"
echo envar=`%envar%`
echo.

echo Using substr
echo   example: `%envar:~0,5%_%envar:~5%`
echo.

echo.
echo Additional notes:
echo.
echo If you are _not_ using `setlocal EnableDelayedExpansion` you will need
echo to assign the result to a new variable using:
echo set "envar2=%envar:~0,5%_%envar:~5%"
echo     Note the `_` here   ^^
set "envar2=%envar:~0,5%_%envar:~5%"
echo.
echo   envar2=`%envar2%`
echo.

echo If you _are_ using `setlocal EnableDelayedExpansion` you will need
echo to use variable expansion (ie: use the `!` instead of the `%%`):
echo set "envar=!envar:~0,5!_!envar:~5!"
setlocal EnableDelayedExpansion
set "envar=!envar:~0,5!_!envar:~5!"
echo.
echo   envar=`%envar%`
echo.
endlocal

上面的批处理文件产生以下输出：

Setting envar to 'helloworld'
envar=`helloworld`

Using substr
  example: `hello_world`


Additional notes:

If you are _not_ using `setlocal EnableDelayedExpansion` you will need
to assign the result to a new variable using:
set "envar2=%envar:~0,5%_%envar:~5%"
    Note the `_` here   ^

  envar2=`hello_world`

If you _are_ using `setlocal EnableDelayedExpansion` you will need
to use variable expansion (ie: use the `!` instead of the `%`):
set "envar=!envar:~0,5!_!envar:~5!"

  envar=`hello_world`

Answer 2

对于那些想知道答案的人。

@echo on
setlocal EnableDelayedExpansion
for %%A in (*.pdf) do (
set "name=%%A" 
set "name=!name:~0,5!_!name:~5!"
ren "%%A" "!name!"
)

如何使用批处理文件在第5个字符后插入一个字符

2 个答案: