How-to: Delete files older than n days

There are several ways to do this

1) Using ForFiles to delete files over 7 days old:

C:\> forfiles /p "C:\source_folder" /s /m *.* /c "cmd /c Del @path" /d -7

2) Using Robocopy /Move to delete files over 7 days old:

C:\> set _robodel=%TEMP%\~robodel
C:\> MD %_robodel%
C:\> ROBOCOPY "C:\source_folder" %_robodel% /move /minage:7
C:\> del %_robodel% /q

3) Using DateMath.cmd and Getdate.cmd, download DelOlder.cmd

4) With PowerShell delete files over 7 days old:

PS C:\> $now = get-date
PS C:\> dir "C:\source_folder\" | where {$_.LastWriteTime -le $now.AddDays(-7)} | del -whatif

PowerShell also has .AddHours should you want to delete even more recent files.

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Related commands

SetLocal - Control the visibility of environment variables in a batch file.
PowerShell Equivalent: PowerShell methods - Math operations (.addDays)