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，然后再删除该文件夹。
我知道有 forfiles 命令行可以用来删除文件，我只是不知道如何将文件夹名称放入路径中。该文件夹是根据创建日期命名的，我想删除 7 天前的文件夹。文件夹格式为 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之后就可以了
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 [DATE 7 DAYS AGO ...]。
【问题讨论】：
标签： windows batch-file command-line
第一个 - 为什么您尝试先删除文件，然后再删除 tolfer？如果您先删除该文件夹，您将在更短的时间内做同样的事情......
2nd - 我认为您不能批量执行此操作，并非没有错误，您需要提取（知道）您需要使用的至少“X”年的日历日您的目的，而 Batch 没有任何方法可以提取该信息，也无法成为知道如何获取过去几年日历日期的数学天才。
因此您需要一种可以访问 Microsoft.Time 和数据库并进行比较的现实脚本语言。 （Ruby、Python、Perl，所有你想要的更少 Batch）
顺便说一句，存在一些由 RobVanDeerWoud 编写的超高级算法 batfile 代码，用于“玩”事物，例如使用此脚本您可以将“X”天添加到日期，看看是否可以修改以扣除天：
（代码作者：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
【讨论】：
尝试使用rmdir（在命令提示符下键入rmdir /? 寻求帮助）
【讨论】：
好吧，我听从了 Elektro Hacker 的建议，最终通过 powershell 完成了这项工作，如下所示：
$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"
}
在此我进行了 3 次不同的备份（每天、每周和每月）。所以基本上我从一周前的每日，一个月前的每周和一岁的每月删除所有文件。我还将每个删除的日期和文件夹打印到文件中，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。然后每天运行此脚本，到目前为止运行良好。
谢谢， 德曼
【讨论】：