如何通过批处理脚本删除最旧的日期文件夹？

Question

我有一个包含多个文件夹的目录，它们的文件名是日期：

...
03-Wed-11
03-Tue-10
03-Mon-09
...

如何编写删除最旧文件夹的批处理脚本。最好是一个月大的文件夹？通过使用它们的文件名，选择最旧的。

您无法保存包含: 和/ 的文件夹。这就是为什么下面的脚本。我用来制作日期文件夹（）：

for /F "tokens=1-4 delims=/ " %%A in ('date/t') do (
set DateDay=%%A
set DateMonth=%%B
set DateYear=%%C
)
set CurrentDate=%DateMonth%-%DateDay%-%DateYear%

如果您像这样回显当前日期：echo %CurrentDate%，它将显示如下：03-Web-11 日期是 Windows 系统日期。

Answer 1

试试这个：

@echo off
SETLOCAL EnableDelayedExpansion

REM Need not to set the variable currentYear and currentMonth. It will be automatically set by wmic
set currentYear=
set currentMonth=


REM Setting the currentYear and currentMonth...
for /f "skip=1 tokens=1-2 delims= " %%a in ('wmic path Win32_LocalTime Get Month^,Year /Format:table') do (
    IF NOT "%%~b"=="" (
        set /a currentMonth=%%a
        set /a currentYear=%%b
        set currentYear=!currentYear:~-2,4!
        set currentMonth=!currentMonth:~-2,4!
    )
)

REM removing folder that are more than one year
for /D %%a IN (*) do (
    set folderName=%%a
    set folderYear=!folderName:~-2,9!

    if !currentYear! gtr !folderYear! (
        rmdir /S /Q !folderName!
        echo Deleted !folderName!
    )
)

REM removing folder that are more than one month    
for /D %%a IN (*) do (
    set folderName=%%a
    set folderMonth=!folderName:~0,-7!

    if !currentMonth! gtr !folderMonth! (
        rmdir /S /Q !folderName!
        echo Deleted !folderName!
    )
)

此代码将帮助您删除上个月的文件夹。例如，如果您在 2015 年 3 月在此文件夹上运行此代码：

...
01-Fri-15 //deleted, since it is more than one month
02-Thu-15 //deleted, since it is more than one month
03-Wed-15 //retained, since the batch program runs on March 2015
03-Wed-11 //deleted, since it is earlier than 2015
03-Tue-10 //deleted, since it is earlier than 2015
03-Mon-09 //deleted, since it is earlier than 2015
...

请注意，我使用 wmic 而不是 date \t 来获取当前日期。这是因为wmic 允许您获取当前日期而不受区域设置的影响。

希望对你有帮助！