Windows 下批量修改文件夹及子文件夹下文件的扩展名 |
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Windows 下批量修改文件夹及子文件夹下文件的扩展名
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方法1. @echo off set DestPath=D:\Music_bak for /r %DestPath% %%i in (.) do ( echo %%i cd %%i ren *.mp3 *.m3p ) pauserename 命令 RENAME [drive:][path]filename1 filename2. REN [drive:][path]filename1 filename2. filename2 不能带有路径所以修改子文件夹下的文件后缀名时先 cd到子文件夹下 方法2. @echo off set DestPath=D:\Music_bak cd %DestPath% for /f "tokens=*" %%i in ('dir /A:-D /S/B') do ( echo %%~pi move "%%i" "%%~pi\%%~ni.mp3" ) pause如果你的文件命中含有空格 需要加上”tokens=” 表示提取一整列，比如：文件路径是D:\Music_bak\I love you.mp3, 如果不加”tokens=” 你获取的 %%i 就会是D:\Music_bak\I dir /A:-D /S/B dir 是列出当前目录的文件 /A:-D 表示只列出文件，D（Directory）是列出目录，-D（not Directory）列出文件 /S 表示不仅列出当前目录的文件，也包括子目录（subdirectories）的文件 /B 表示只显示最简单的信息，也就是只显示长文件名 %%~pi 是只取到路径 %%~ni 是只取文件名 在控制台输入 for /? 回车会看到所有信息，下面是关于%i的一小段： In addition, substitution of FOR variable references has been enhanced. You can now use the following optional syntax: %~I - expands %I removing any surrounding quotes (") %~fI - expands %I to a fully qualified path name %~dI - expands %I to a drive letter only %~pI - expands %I to a path only %~nI - expands %I to a file name only %~xI - expands %I to a file extension only %~sI - expanded path contains short names only %~aI - expands %I to file attributes of file %~tI - expands %I to date/time of file %~zI - expands %I to size of file %~$PATH:I - searches the directories listed in the PATH environment variable and expands %I to the fully qualified name of the first one found. If the environment variable name is not defined or the file is not found by the search, then this modifier expands to the empty stringThe modifiers can be combined to get compound results: %~dpI - expands %I to a drive letter and path only %~nxI - expands %I to a file name and extension only %~fsI - expands %I to a full path name with short names only %~dp$PATH:I - searches the directories listed in the PATH environment variable for %I and expands to the drive letter and path of the first one found. %~ftzaI - expands %I to a DIR like output lineIn the above examples %I and PATH can be replaced by other valid values. The %~ syntax is terminated by a valid FOR variable name. Picking upper case variable names like %I makes it more readable and avoids confusion with the modifiers, which are not case sensitive.
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