批处理文件显示一系列命名相似的文件的属性

Question

我在10年内没有对批处理文件进行任何操作，但是我发现自己需要列出一堆文件的文件大小，通过CG999命名为CG100.mpg。 mpg

必须有办法让一个批处理文件逐个查看一系列类似命名的文件，使用FOR循环吗？

Answer 1

绝对有一个简单的办法让你的结果使用FOR - 阅读帮助结束处的FOR循环扩展修饰符 - 从命令行输入HELP FOR或FOR /?。

你甚至不需要批处理文件。这一个班轮将不正是你想要在命令行上什么：

for /l %N in (100 1 999) do @for %F in (GC%N.mpg) do @if exist %F echo %F size = %~zF 

改变所有的%到%%如果您在批处理文件中使用的命令。

命令更加简单，如果你只是想列出匹配模式GC*.mpg的所有文件大小：

for %F in (GC*.mpg) do @echo %F size = %~zF 

Answer 2

如果你能够利用Python的那么下面将工作：

from os.path import getsize 

results = [('CG%d.mpg = ' % i) + str(getsize('CG%d.mpg' % i)) for i in range(100, 999)] 

print results 

否则，对于批处理文件，你可以使用FORFILES：

Select a file (or set of files) and execute a command on each file. Batch processing. 

Syntax 
     FORFILES [/p Path] [/m Mask] [/s] [/c Command] [/d [+ | -] {dd/MM/yyyy | dd}] 

Key /p Path  The Path to search (default=current folder) 

    /s   Recurse into sub-folders 

    /C command The command to execute for each file. 
       Wrap the command string in double quotes. 
       Default = "cmd /c echo @file" 

       The Command variables listed below can also be used in the 
       command string. 

    /D date  Select files with a last modified date greater than or 

       equal to (+), or less than or equal to (-), 
       the specified date using the "dd/MM/yyyy" format; 

    /D + dd  Select files with a last modified date greater than or 
       equal to the current date plus "dd" days. (in the future) 

    /D - dd  Select files with a last modified date less than or 
       equal to the current date minus "dd" days. (in the past) 

       A valid "dd" number of days can be any number in 
       the range of 0 to 32768. (89 years) 
       "+" is taken as default sign if not specified. 

    Command Variables: 
     @file The name of the file. 
     @fname The file name without extension.     
     @ext  Only the extension of the file.     
     @path Full path of the file. 
     @relpath Relative path of the file.   
     @isdir Returns "TRUE" if a file type is a directory, 
       and "FALSE" for files. 
     @fsize Size of the file in bytes. 
     @fdate Last modified date of the file. 
     @ftime Last modified time of the file.