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Posted on 2014-03-14
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Last Modified: 2014-03-20
How to write a powershell to remove files and subfolders older than 7 days in  a particular folder  ?

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Question by:AXISHK
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Dan Craciun earned 167 total points
ID: 39928630
$today=get-date
$oldDate = $today.addDays(-7)
gci "x:\your\path" | % {if ($_.CreationTime -lt $oldDate) {Remove-Item $_.FullName -Force}}

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Replace x:\your\path with the actual path.

HTH,
Dan
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by:Qlemo
Qlemo earned 167 total points
ID: 39928644
I would go with a two steps task. First delete all "old" files. Then go thru the folders and check if there are no files left, and if so delete the folder. This is because the folder timestamp isn't reliable for measuring age.
$date = (get-date).AddDays(-7)
dir c:\temp\root -recurse | ? { ! $_.PsIsContainer -and $_.LastWriteTime -lt $date } | remove-item

function recdel ($folder)
{
  dir $folder | ? { $_.PsIsContainer } | % { recdel $_ }
  if ( (dir $folder).Count -eq 0 ) { remove-item $folder }
}

recdel c:\temp\root

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by:JoeKlimis
JoeKlimis earned 166 total points
ID: 39928653
I use this one liner

 Get-ChildItem -Recurse -Path "e:\temp" | ? { $_.LastWriteTime -lt (get-date).adddays(-
7)} | Remove-Item 

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Expert Comment

by:Qlemo
ID: 39928822
That's a two-liner :-p

Assuming the folder time stamps are working, you both are obviously missing the point that you first need to delete subfolders before you can delete the parent ...
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Expert Comment

by:JoeKlimis
ID: 39929350
You are right , it wrapped ;-)

I also tested this with a structure 3 folders deep and files in the lowest folder

This removed everything, in one go .   ( useing powershell V3 )
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Author Comment

by:AXISHK
ID: 39936811
dir $folder | ? { $_.PsIsContainer } | % { recdel $_ }


What is the meaning for '?' and '%'  ?

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Expert Comment

by:JoeKlimis
ID: 39936898
Hi

?  is a short cut for  where  statement
% is a shortcut for  ForEach statement

I hope that helps

Joe
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Expert Comment

by:Qlemo
ID: 39936913
Correction: Those are no statements but cmdlets. The difference is that you can't pipe into and out of a statement (by default). And the foreach statement is
foreach ($file in get-childitems c:\temp) { write-host $file }

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while the foreach-object cmdlet (with a confusing alias of foreach and the popular alias %) is
get-childitems c:\temp | % { write-host $_ }

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if, while are two examples of statements.
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Expert Comment

by:Qlemo
ID: 39936917
Correction: Those are no statements but cmdlets. The difference is that you can't pipe into and out of a statement (by default). And the foreach statement is
foreach ($file in get-childitems c:\temp) { write-host $file }

Open in new window

while the foreach-object cmdlet (with a confusing alias of foreach and the popular alias %) is
get-childitems c:\temp | % { write-host $_ }

Open in new window

if, while are two examples of statements.
0

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