Find files on Windows modified after a given date

问题:

I need to search a file on my disk modified after a given date using the command line.

For example:

   dir /S /B WHERE modified date > 12/07/2013

回答1:

You can use PowerShell to do this. Try:

Get-ChildItem -Recurse | Where-Object { $_.LastWriteTime -ge "12/27/2016" }

回答2:

The forfiles command worked for me on Windows 7. The article is here:

Find files based on modified time

Microsoft Technet documentation: Forfiles For the example above:

forfiles /P <dir> /S /D +12/07/2013

• /P The starting path to search
• /S Recurse into sub-directories
• /D Date to search, the "+" means "greater than" or "since"

回答3:

I was after the size of the files changed and did not have PowerShell. I used the following, but the clue came from other posts:

http://www.scotiasystems.com/blog/it-hints-and-tips/quick-way-to-find-recently-changed-files-in-windows and Windows command for file size only

set Target=E:\userdata
rem Date format is M-D-YYYY
set date=12-13-2013
set Filelist=d:\temp\filelist.txt
set Sizelist=d:\temp\sizelist%date%.csv

echo Target is %Target%
echo Start date is %date%
echo file list is %Filelist%
echo Sizelist is %sizelist%

Xcopy %Target% /D:%date% /L /S  > %Filelist%
echo FileSize (bytes), FileName > %sizelist%

For /f "tokens=1 delims=;" %%j in (%Filelist%) do (
                call :Size "%%j"
                )
Goto :EOF

:Size
@echo off
echo %~z1, %1 >> %sizelist%

回答4:

I had the same problem, so I created a list using XCOPY and the modified-by date I was looking for, used a for loop to traverse the list, and added the date/time information I needed for each file to a log:

xcopy X:\file_*.log X:\temp /D:07-17-2014 /L /Y > X:\files.txt
for /f "tokens=* delims=" %%a in (X:\files.txt ) do (
    @echo %%~ta %%a >> X:\files.log
)

It resulted in something like the following, which is exactly what I wanted.

X:\>()
07/17/2014 09:41 AM X:\file_201407170600.log

X:\>()
07/17/2014 09:41 AM X:\file_201407170615.log

X:\>()
07/17/2014 09:23 AM X:\file_201407170630.log

回答5:

You can search files modified after a given date using XCOPY as in this example, looking for files since last day of 2018:

xcopy *.* c:\temp\*.* /D:12-31-2018 /L /S

In this example, you are in the directory where your search begins.

C:\temp*.* is only a syntax requisite, and nothing will be copied there.

/D:12-31-2018 specifies the files modified date you are looking for, including the specified date.

/L: Shows the filenames, including drive and path, also makes XCOPY do not copy any file.

/S: Search in subdirectories.

回答6:

If you decide to use PowerShell, this will also work with time and date ranges:

Get-ChildItem -Recurse | Where-Object {($_.LastWriteTime -ge "04/15/2018 20:00:00") -and ($
_.LastWriteTime -lt "04/15/2018 21:00:00")}

To use a programmatic date or a Locale agnostic date time:

Get-ChildItem -Recurse | Where-Object {($_.LastWriteTime -ge (new-object System.DateTime 2018, 1, 10, 12, 30, 00)) -and ($_.LastWriteTime -lt (new-object System.DateTime 2018, 1, 14, 12, 15, 59))}

Where date and time are entered in increasing time specificity order:

Year, Month, Day, Hour, Minute, Second

回答7:

I had a similar challenge. I used forfiles, however I noticed that it gave >= rather than just >. The input date was a variable, and so I didn't want to go through a bunch of hoops/loops to calculate date + 1 day (think about logic for last day of month or last day of year).

I created a function that ran forfiles for a particular date. That gives us all files with a modification date that is >= _date_. And for each file I check if the modification date is _date_, and print the output to a file if and only if it is not equal. That means the output file only has entries for files that are > _date_.

I can then check for existence of the output file to determine if any files in the current directory are greater than the input date. Moreover, if I wanted to know which files are newer, I can view the contents of the output file.

Finally, my input was parsed from a file that used a date format of MM/DD/YYYY, meaning it would be 07/01/2019 for July first. However, the date from FORFILES does not use leading zeros so I need to translate by dropping leading zeros.

My first attempt was to use /A thinking it drops the leading zeros. It doesn't it reads the value as octal -- don't repeat the mistake of my first attempt. So I just created a little helper function :getNum that drops leading zeros.

:: ########################################################################
:: :findNewerFiles
::
::     Windowsfile interface will only tell you if a file is
::     greater than OR EQUAL to the current date. Had to figure a way
::     to get just greater than.
::
::     Use 'forfiles' to find all files that are >= the specific date, and for
::     each file if the files date is not equal to the specific date then echo
::     the file information into the new-file-log.
::
::     If the new-file-log exists after we're all done, then it means there is
::     at least one file newer than the specified date.
::
:: PARMS:
::
::     %1 - MONTH
::
::     %2 - DAY
::
::     %3 - YEAR
::
:: ERRORLEVEL:
::     0  if no newer files found
::     !0 if a newer file was found
::
:findNewerFiles
SETLOCAL
    CALL :getNum M "%~1"
    CALL :getNum D "%~2"
    CALL :getNum Y "%~3"


    SET "RETVAL=1"

    %bu.callecho% PUSHD %G[3PROOT_UNC]%

    ECHO Last build date was: %M%/%D%/%Y%
    del "%G[NEW_FILE_LOG]%" >nul 2>&1

    FORFILES /p .\ /S /D +%M%/%D%/%Y% ^
             /c "cmd /c if /I @ISDIR == false if not @fdate==%M%/%D%/%Y% echo @fdate @path>>%G[NEW_FILE_LOG]%"

    IF EXIST "%G[NEW_FILE_LOG]%" (
        SET "RETVAL=0"
        TYPE "%G[NEW_FILE_LOG]%"
    )

    %bu.callecho% POPD
(ENDLOCAL
 EXIT /B %RETVAL%)





:: ########################################################################
:: :getNum
::
::     Remove leading 0 from input number and place results in output variable
::
:: PARMS:
::
::     %1 - OUTPUT VARIABLE
::          Name of the output variable to be populated
::
::     %2 - INPUT VARIABLE
::          The number to have leading zeros trimmed from
::
:: ERRORLEVEL:
::     0  always
::
:getNum
SETLOCAL
    SET "D=%~1"
    SET "M=%~2"

    IF "%M:~0,1%" EQU "0" (
        SET "M=%M:~1%"
    )

(ENDLOCAL
 SET "%D%=%M%"
 EXIT /B 0)