Question

我正在寻找一种方法来删除包含在具有特定名称的文件夹中的文件，然后删除该文件夹。

我知道有可以用来删除文件的forfiles命令行，我只是不知道如何将文件夹名称放入路径中。该文件夹是根据它创建的日期命名的，我想删除7天前的文件夹。该文件夹的格式为yyyymmdd。

基本上我需要

forfiles /P "C:\backups\[DATE 7 DAYS AGO IN yyyymmdd format]" /S /M *.BAK /C "cmd /c del @path"

然后我想删除文件夹

forfiles /P "C:\backups\[DATE 7 DAYS AGO IN yyyymmdd format]" /S /C "cmd /c IF @isDir == TRUE rd @path"

如何为这些填写[日期7天...]。

Answer 1

1st - 为什么你试图先删除文件，然后是tolfer？如果你先删除文件夹，那么你会在更短的时间内做同样的事情......

第二 - 我认为你无法在批处理中做到这一点，不是没有错误，你需要至少提取（知道）你需要使用的“X”年的日历日您的目的，批处理没有任何方法可以提取该信息，或者是一个知道如何获取过去几年的日历日期的数学知识。

因此您需要一种能够访问Microsoft.Time和数据库的现实脚本语言并进行比较。（Ruby，Python，Perl，所有你想要的更少批处理）

顺便说一下，RobVanDeerWoud写的一些超高级的aricmetics batfile代码用来“玩”东西，例如用这个脚本你可以添加“X”天到一个日期，看看你是否可以修改以扣除天：

（代码作者的信用证：ROBVANDERWOUD）

DATEADD.BAT:



@ECHO OFF
ECHO.

:: Check the Windows version
IF NOT "%OS%"=="Windows_NT" GOTO Syntax
SETLOCAL

:: Initialize variable
SET Error=0

:: Check the command line arguments
IF     "%~1"=="" GOTO Syntax
IF NOT "%~3"=="" GOTO Syntax
IF "%~2"=="" (
    FOR %%A IN (%Date%) DO SET cDate=%%A
    SET cDays=%~1
) ELSE (
    SET cDate=%~1
    SET cDays=%~2
)

:: Read the Date format from the registry
CALL :ReadDateFormat

:: Check if a valid date was specified
(ECHO.%cDate%) | FINDSTR /R /B /C:"[0-9]*\%sDate%[0-9]*\%sDate%[0-9]*" >NUL
IF ERRORLEVEL 1 (
    ECHO Error: %cDate% is not a valid date
    ECHO.
    GOTO Syntax
)

:: Check if the second argument is a valid number
(ECHO.%cDays%) | FINDSTR /R /B /C:"-*[0-9]*" >NUL
IF ERRORLEVEL 1 (
    ECHO Error: %cDays% is not an integer
    ECHO.
    GOTO Syntax
)

:: Parse the date specified
CALL :ParseDate %cDate%

:: Check for errors
IF %Error% NEQ 0 GOTO Syntax

:: Convert the parsed Gregorian date to Julian
CALL :JDate %GYear% %GMonth% %GDay%

:: Display original input
ECHO Starting date   : %cDate%

:: Add or subtract the specified number of days
IF "%cDays:~0,1%"=="-" (
    SET /A NewJDate = %JDate% - %cDays:~1%
    ECHO Days subtracted : %cDays:~1%
) ELSE (
    SET /A NewJDate = %JDate% + %cDays%
    ECHO Days added      : %cDays%
)

:: Convert the new Julian date back to Gregorian again
CALL :GDate %NewJDate%

:: Reformat the date to local format
CALL :ReformatDate %GDate%

:: Display the result
ECHO Resulting date  : %LDate%

:: Return the result in a variable named after this batch file
ENDLOCAL & SET %~n0=%LDate%
GOTO:EOF


::===================================::
::                                   ::
::   -   S u b r o u t i n e s   -   ::
::                                   ::
::===================================::


:GDate
:: Convert Julian date back to "normal" Gregorian date
:: Argument : Julian date
:: Returns  : YYYY MM DD
::
:: Algorithm based on Fliegel-Van Flandern
:: algorithm from the Astronomical Almanac,
:: provided by Doctor Fenton on the Math Forum
:: (http://mathforum.org/library/drmath/view/51907.html),
:: and converted to batch code by Ron Bakowski.
::
SET /A P      = %1 + 68569
SET /A Q      = 4 * %P% / 146097
SET /A R      = %P% - ( 146097 * %Q% +3 ) / 4
SET /A S      = 4000 * ( %R% + 1 ) / 1461001
SET /A T      = %R% - 1461 * %S% / 4 + 31
SET /A U      = 80 * %T% / 2447
SET /A V      = %U% / 11
SET /A GYear  = 100 * ( %Q% - 49 ) + %S% + %V%
SET /A GMonth = %U% + 2 - 12 * %V%
SET /A GDay   = %T% - 2447 * %U% / 80
:: Clean up the mess
FOR %%A IN (P Q R S T U V) DO SET %%A=
:: Add leading zeroes
IF 1%GMonth% LSS 20 SET GMonth=0%GMonth%
IF 1%GDay%   LSS 20 SET GDay=0%GDay%
:: Return value
SET GDate=%GYear% %GMonth% %GDay%
GOTO:EOF


:JDate
:: Convert date to Julian
:: Arguments : YYYY MM DD
:: Returns   : Julian date
::
:: First strip leading zeroes
SET MM=%2
SET DD=%3
IF %MM:~0,1% EQU 0 SET MM=%MM:~1%
IF %DD:~0,1% EQU 0 SET DD=%DD:~1%
::
:: Algorithm based on Fliegel-Van Flandern
:: algorithm from the Astronomical Almanac,
:: provided by Doctor Fenton on the Math Forum
:: (http://mathforum.org/library/drmath/view/51907.html),
:: and converted to batch code by Ron Bakowski.
SET /A Month1 = ( %MM% - 14 ) / 12
SET /A Year1  = %1 + 4800
SET /A JDate  = 1461 * ( %Year1% + %Month1% ) / 4 + 367 * ( %MM% - 2 -12 * %Month1% ) / 12 - ( 3 * ( ( %Year1% + %Month1% + 100 ) / 100 ) ) / 4 + %DD% - 32075
FOR %%A IN (Month1 Year1) DO SET %%A=
GOTO:EOF 


:ParseDate
:: Parse (Gregorian) date depending on registry's date format settings
:: Argument : Gregorian date in local date format,
:: Requires : sDate (local date separator), iDate (local date format number)
:: Returns  : GYear (4-digit year), GMonth (2-digit month), GDay (2-digit day)
::
IF %iDate%==0 FOR /F "TOKENS=1-3 DELIMS=%sDate%" %%A IN ('ECHO.%1') DO (
    SET GYear=%%C
    SET GMonth=%%A
    SET GDay=%%B
)
IF %iDate%==1 FOR /F "TOKENS=1-3 DELIMS=%sDate%" %%A IN ('ECHO.%1') DO (
    SET GYear=%%C
    SET GMonth=%%B
    SET GDay=%%A
)
IF %iDate%==2 FOR /F "TOKENS=1-3 DELIMS=%sDate%" %%A IN ('ECHO.%1') DO (
    SET GYear=%%A
    SET GMonth=%%B
    SET GDay=%%C
)
IF %GDay%   GTR 31 SET Error=1
IF %GMonth% GTR 12 SET Error=1
GOTO:EOF


:ReadDateFormat
:: Read the Date format from the registry.
:: Arguments : none
:: Returns   : sDate (separator), iDate (date format number)
::
:: First, export registry settings to a temporary file:
START /W REGEDIT /E "%TEMP%.\_TEMP.REG" "HKEY_CURRENT_USER\Control Panel\International"
:: Now, read the exported data:
FOR /F "tokens=1* delims==" %%A IN ('TYPE "%TEMP%.\_TEMP.REG" ˆ| FIND /I "iDate"') DO SET iDate=%%B
FOR /F "tokens=1* delims==" %%A IN ('TYPE "%TEMP%.\_TEMP.REG" ˆ| FIND /I "sDate"') DO SET sDate=%%B
:: Remove the temporary file:
DEL "%TEMP%.\_TEMP.REG"
:: Remove quotes from the data read:
:: SET iDate=%iDate:"=%
FOR %%A IN (%iDate%) DO SET iDate=%%~A
:: SET sDate=%sDate:"=%
FOR %%A IN (%sDate%) DO SET sDate=%%~A
GOTO:EOF


:ReformatDate
:: Reformat the date back to the local format
:: Arguments : YYYY MM DD
:: Returns   : LDate (Gregorian date in local format)
::
IF %iDate%==0 SET LDate=%2%sDate%%3%sDate%%1
IF %iDate%==1 SET LDate=%3%sDate%%2%sDate%%1
IF %iDate%==2 SET LDate=%1%sDate%%2%sDate%%3
GOTO:EOF


:Syntax
ECHO DateAdd.bat,  Version 1.10 for Windows NT 4 / 2000 / XP / Server 2003 / Vista
ECHO Add (or subtract) the specified number of days to (or from) the specified date
ECHO.
ECHO Usage:  DATEADD  [ date ]  days
ECHO.
ECHO Where:  "date"   is a "normal" Gregorian date in the local computer's format
ECHO                  (default value if no date is specified: today's date)
ECHO         "days"   is the number of days to add or subtract
ECHO.
IF     "%OS%"=="Windows_NT" FOR %%A IN (%Date%) DO SET Today=%%A
IF     "%OS%"=="Windows_NT" ECHO E.g.    DATEADD %Today%  1 will return tomorrow's date  (as will DATEADD  1)
IF     "%OS%"=="Windows_NT" ECHO         DATEADD %Today% -1 will return yesterday's date (as will DATEADD -1)
IF     "%OS%"=="Windows_NT" ENDLOCAL
IF NOT "%OS%"=="Windows_NT" ECHO E.g.    DATEADD 01/25/2007  1 should return 01/26/2007
IF NOT "%OS%"=="Windows_NT" ECHO         DATEADD 01/25/2007 -1 should return 01/24/2007
ECHO.
ECHO Julian date conversion based on Fliegel-Van Flandern algorithms from
ECHO the Astronomical Almanac, provided by Doctor Fenton on the Math Forum
ECHO (http://mathforum.org/library/drmath/view/51907.html), and converted
ECHO to batch code by Ron Bakowski.
ECHO.
ECHO Written by Rob van der Woude
ECHO http://www.robvanderwoude.com

Answer 2

尝试使用rmdir（在命令提示符下键入rmdir /?获取帮助）

Answer 3

好吧，所以我遵循了Elektro Hacker的建议，最后我通过powershell做了这个，看起来如下：

$currentDate = get-date
$backupPath = "C:\backup\"
$logFilePath = ("$backupPath" + "ScriptAndQuery\Logs\")

$dailyLog = ("$logFilePath" + "daily_delete.txt")
$weeklyLog = ("$logFilePath" + "weekly_delete.txt")
$monthlyLog = ("$logFilePath" + "monthly_delete.txt")

$dailyBackup = ("$backupPath" + "Daily\")
$weeklyBackup = ("$backupPath" + "Weekly\")
$monthlyBackup = ("$backupPath" + "Monthly\")

$addDateToFile = "TRUE"

get-childitem $dailyBackup |? { $_.psiscontainer -and $_.lastwritetime -le ($currentDate).adddays(-7) } |% { 
    try {
        if($addDateToFile -eq "TRUE") {
            Add-Content "$dailyLog" "$currentDate`r`n"
            $addDateToFile = "FALSE"
        }

        $fullPath = $_.FullName
        remove-item $fullPath -Recurse -force

        if (test-path $fullPath) {
            Add-Content "$dailyLog" "FAILED TO DELETE $fullPath`n"
        } else {
            Add-Content "$dailyLog" "SUCCESSFULLY DELETED $fullPath`n"
        }
    }
    catch {
        Add-Content "$dailyLog" "Exception Occurred: $_.Exception`n"
    }
}

if ($addDateToFile -eq "FALSE") {
    Add-Content "$dailyLog" "`r`n"
    $addDateToFile = "TRUE"
}

get-childitem $weeklyBackup |? {$_.psiscontainer -and $_.lastwritetime -le ($currentDate).adddays(-28)} |% { 
    try {
        if ($addDateToFile -eq "TRUE") {
            Add-Content "$weeklyLog" "$currentDate`r`n"
            $addDateToFile = "FALSE"
        }

        $fullPath = $_.FullName
        remove-item $fullPath -Recurse -force

        if (test-path $fullPath) {
            Add-Content "$weeklyLog" "FAILED TO DELETE $fullPath`n"
        } else {
            Add-Content "$weeklyLog" "SUCCESSFULLY DELETED $fullPath`n"
        }
    }
    catch {
        Add-Content "$weeklyLog" "Exception Occurred: $_.Exception`n"
    }
}

if ($addDateToFile -eq "FALSE") {
    Add-Content "$weeklyLog" "`r`n"
    $addDateToFile = "TRUE"
}

get-childitem $monthlyBackup |? {$_.psiscontainer -and $_.lastwritetime -le ($currentDate).adddays(-365)} |% { 
    try {
        if($addDateToFile -eq "TRUE") {
            Add-Content "$monthlyLog" "$currentDate`r`n"
            $addDateToFile = "FALSE"
        }

        $fullPath = $_.FullName
        remove-item $fullPath -Recurse -force 

        if (test-path $fullPath) {
            Add-Content "$monthlyLog" "FAILED TO DELETE $fullPath`n"
        } else {
            Add-Content "$monthlyLog" "SUCCESSFULLY DELETED $fullPath`n"
        }
    }
    catch {
        Add-Content "$monthlyLog" "Exception Occurred: $_.Exception`n"
    }
} 

if ($addDateToFile -eq "FALSE") {
    Add-Content "$monthlyLog" "`r`n"
}

在此我发生了3次不同的备份（每日，每周和每月）。所以基本上我删除了每周的所有文件，这些文件是一周，每周一个月，一个月是一年。我还会在文件中打印为每个文件删除的日期和文件夹，或者在文件夹仍然存在或发生异常的情况下打印失败消息。然后这个脚本每天运行，到目前为止工作得很好。

谢谢， DMAN

批处理文件删除文件和文件夹

3 个答案: