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Use Svendsen Tech's Remove-OldFiles function to delete files based on date logic with time granularity ranging from milliseconds to months, and an optional file name regex filter.

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RemoveOldFiles

Use Svendsen Tech's Remove-OldFiles function to delete files based on date logic with time granularity ranging from milliseconds to months, and an optional file name regex filter.

Removes files that are "older" than the specified number of milliseconds, seconds, minutes, hours, days, weeks or months - or a combination of any of these, as calculated based on the "LastWriteTime" property returned from Get-Item, for determining "age". All the specified time units are added together.

Optional file name filtering with a regular expression, otherwise all files are targeted.

Optional recursion. Resolve-Path support that allows for directories for instance two levels deep with something like -Path C:\foo\*\*.

The times specified from ms to months are all cumulated and added together to form a large decimal-typed millisecond number. Time units are converted to milliseconds and handled with .NET date math. This should also account for the corner cases of leap seconds as of v1.1.0 of the module. In v1.0 (as currently in the PSGallery; working on publishing the updated one), only months are handled with .NET date math.

You can specify a -NameRegexMatch parameter to only target only file names that match this regular expression. The default is simply .*.

This regex always matches, so name filtering is in effect not enabled by default unless you override with this parameter. NB! It is not wildcards such as for the -like operator, but regular expressions, such as for the -match operator, so make sure you test and know that the results are as expected. I plan to implement a -NameWildcardMatch parameter, but might put it off for years, knowing myself. Demand helps...

It supports -WhatIf in a non-proper implementation currently (but functionally not too different, it was just a bit easier and also caused by a now gone, dead end in code). I'm in two minds about changing it to the proper implementation, but will likely do it soon for assumed broader acceptance of the code.

Installation from the PowerShell Gallery

The module is published to the PowerShell Gallery, so you can install it with for instance this command for your user only:

Install-Module -Name RemoveOldFiles -Scope CurrentUser #-Force

Or you can download it with:

Save-Module -Name RemoveOldFiles -Path C:\Scripts

And inspect it first with:

Find-Module -Name RemoveOldFiles | Format-List *

Examples


PS C:\temp\testdir> $mydir, "$mydir/1", "$mydir/1/2", "$mydir/1/2/3" | %{
    New-RandomData -Path $_ -BaseName keepThese -Extension .log -Count 3 `
    -Size 1024 -LineLength 128 }

PS C:\temp\testdir> $mydir, "$mydir/1", "$mydir/1/2", "$mydir/1/2/3" | %{
    New-RandomData -Path $_ -BaseName deletethese -Extension .tmp -Count 3 `
    -Size 1024 -LineLength 128 }

PS C:\temp\testdir> ipmo ..\RemoveOldFiles -Force

PS C:\temp\testdir> Remove-OldFiles -Path ., ./1/2 -WhatIf -Second 1
VERBOSE: Recorded 'now' time as: 2018-12-17 21:09:16
VERBOSE: Total milliseconds: 1000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
1 seconds.
0 milliseconds.
VERBOSE: Processing path '.'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\1' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\RandomData' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*
'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*
'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*
'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese1.log'.
VERBOSE: Would have removed 'C:\temp\testdir\keepThese1.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*')
, without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese2.log'.
VERBOSE: Would have removed 'C:\temp\testdir\keepThese2.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*')
, without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese3.log'.
VERBOSE: Would have removed 'C:\temp\testdir\keepThese3.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '.*')
, without -WhatIf in use.
VERBOSE: Processing path './1/2'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\1\2\3' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\keepThese1.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '
.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\keepThese2.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '
.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\keepThese3.log because it was modified more than 1000 ms ago and matches the specified name regex: '.*' (default '
.*'), without -WhatIf in use.
VERBOSE: Total processed path count was: 17
VERBOSE: Would have attempted to delete 12 files without -WhatIf in use.

PS C:\temp\testdir> Remove-OldFiles -Path ., ./1/2 -WhatIf -Second 1 -NameRegex '\.tmp$'
VERBOSE: Recorded 'now' time as: 2018-12-17 21:09:44
VERBOSE: Total milliseconds: 1000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
1 seconds.
0 milliseconds.
VERBOSE: Processing path '.'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\1' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\RandomData' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Processing path './1/2'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\1\2\3' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Total processed path count was: 17
VERBOSE: Would have attempted to delete 6 files without -WhatIf in use.

PS C:\temp\testdir> Remove-OldFiles -Path . -WhatIf -Second 1 -NameRegex '\.tmp$' -Recurse
VERBOSE: Recorded 'now' time as: 2018-12-17 21:10:02
VERBOSE: Total milliseconds: 1000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
1 seconds.
0 milliseconds.
VERBOSE: Processing path '.'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2\3'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\3\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (d
efault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\3\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (d
efault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\3\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (d
efault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\3\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\3\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\3\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\2\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (def
ault '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\2\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\1\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\1\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psd1'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\RandomData\1.2\RandomData.psd1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psm1'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\RandomData\1.2\RandomData.psm1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese1.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese1.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese2.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese2.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese3.tmp'.
VERBOSE: Would have removed 'C:\temp\testdir\deletethese3.tmp because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*'), without -WhatIf in use.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese1.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese2.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese3.log'.
VERBOSE: Ignoring. -WhatIf in use and file 'C:\temp\testdir\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Total processed path count was: 32
VERBOSE: Would have attempted to delete 12 files without -WhatIf in use.

PS C:\temp\testdir> Remove-OldFiles -Path . -Second 1 -NameRegex '\.tmp$' -Recurse # do it
VERBOSE: Recorded 'now' time as: 2018-12-17 21:10:29
VERBOSE: Total milliseconds: 1000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
1 seconds.
0 milliseconds.
VERBOSE: Processing path '.'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2\3'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\3\deletethese1.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\3\deletethese2.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\3\deletethese3.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (defau
lt '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese1.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese2.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese3.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default
 '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese1.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '
.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese2.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '
.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese3.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '
.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psd1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psd1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psm1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psm1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\deletethese1.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '.*
').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\deletethese2.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '.*
').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\deletethese3.tmp' because it was modified more than 1000 ms ago and matches the specified name regex: '\.tmp$' (default '.*
').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Total processed path count was: 32
VERBOSE: Attempted to delete 12 files.

PS C:\temp\testdir> # Attempted to delete 12 files

PS C:\temp\testdir> Remove-OldFiles -Path . -Second 1 -NameRegex '\.tmp$' -Recurse # do it
VERBOSE: Recorded 'now' time as: 2018-12-17 21:10:42
VERBOSE: Total milliseconds: 1000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
1 seconds.
0 milliseconds.
VERBOSE: Processing path '.'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2\3'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\3\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psd1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psd1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psm1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psm1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Total processed path count was: 20
VERBOSE: Attempted to delete 0 files.

PS C:\temp\testdir> # 0, so they were all successfully deleted

PS C:\temp\testdir>

Examples of Resolve-Path support baked in, without -Recurse, to do directories only one and two levels deep:

PS C:\temp\testdir> Remove-OldFiles -Path ./*/* -Second 10 -NameRegexMatch '\.tmp$'
VERBOSE: Recorded 'now' time as: 2018-12-17 21:18:17
VERBOSE: Total milliseconds: 10000.
0 months.
0 weeks.
0 days.
0 hours.
0 minutes.
10 seconds.
0 milliseconds.
VERBOSE: Processing path './*/*'.
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\1\2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\3'.
VERBOSE: -Recurse parameter not specified, so directory 'C:\temp\testdir\1\2\3' is skipped.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese1.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$'
 (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese2.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$'
 (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\2\deletethese3.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$'
 (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\2\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\2\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\deletethese1.tmp'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese1.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese1.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$' (
default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\deletethese2.tmp'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese2.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese2.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$' (
default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\deletethese3.tmp'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\deletethese3.tmp'.
VERBOSE: Removing file 'C:\temp\testdir\1\deletethese3.tmp' because it was modified more than 10000 ms ago and matches the specified name regex: '\.tmp$' (
default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\keepThese1.log'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese1.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese1.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\keepThese2.log'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese2.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese2.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\1\keepThese3.log'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\1\keepThese3.log'.
VERBOSE: Ignoring. File 'C:\temp\testdir\1\keepThese3.log' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: In foreach $TempTempPath processing path 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: Processing first level directory with path: 'C:\temp\testdir\RandomData\1.2'.
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psd1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psd1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: in InnerProcessPath processing 'C:\temp\testdir\RandomData\1.2\RandomData.psm1'.
VERBOSE: Ignoring. File 'C:\temp\testdir\RandomData\1.2\RandomData.psm1' does not match the specified name regex: '\.tmp$' (default '.*').
VERBOSE: Total processed path count was: 17
VERBOSE: Attempted to delete 6 files.

PS C:\temp\testdir>

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Use Svendsen Tech's Remove-OldFiles function to delete files based on date logic with time granularity ranging from milliseconds to months, and an optional file name regex filter.

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files date powershell old remove svendsentech

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