Is there a way when you use Get-ChildItem with a Where-Object clause to have it produce the results in a text file only if there are results?
Get-ChildItem -path \\$server\e$ -Recurse | Where-Object {$_.name -eq help.txt} | `
out-file "c:\temp\$server.txt"
The above will produce a file regardless if there are results. I'm having trouble telling implementing the logic to only create when results are available.
You can't do it that way. You'll have to do it in 2 parts:
$results = Get-ChildItem -path \\$server\e$ -Recurse | Where-Object {$_.name -eq help.txt}
if ($results) {
$results | out-file "c:\temp\$server.txt"
}
Seems to work how you want if you use Set-Content instead of Out-File.
Get-ChildItem -path \\$server\e$ -Recurse | Where-Object {$_.name -eq help.txt} |
Set-Content "c:\temp\$server.txt"
#or
gci -R \\$server\e$ |? Name -eq "help.txt" | sc "c:\temp\$server.txt"
Related
im quiet new to powerhsell and I have the following goal:
My code is supposed to loop through selected subfolders and compare those. The names of the subfolders are identical in both parent folders, however the path before those selected folders are different: C:\temp\parentF1\BackUp* and C:\temp\parentF2\BackUp*
The problem that I have is that even tho I think my $vars that I use for the comparison should have a value, are NULL and I cant think of why!
$path = "subfolder1","subfolder2","subfolder3"
$excludeF1 = #(C:\temp\parentF1\BackUp\*\subfolder5)
$excludeF2 = #(C:\temp\parentF2\BackUp\*\subfolder5)
$x = 0
while($x -lt $path.Count){
$F1 = Get-ChildItem -Recurse -Path "C:\temp\parentF1\BackUp\$path[$x]" |
Where-Object {$_.FullName -notlike $excludeF1}
$F2 = Get-ChildItem -Recurse -Path "C:\temp\parentF2\BackUp\$path[$x]" |
Where-Object {$_.FullName -notlike $excludeF2}
Compare-Object -ref $F1 -dif $F2 |
Select-Object #{Label="$path[$x]";e={$_.InputObject}},`
#{n="Fundort";e={if($_.SideIndicator -like "=>") {write-output "BackUp F1"}`
elseif($_.SideIndicator -like "<="){Write-Output "BackUp F2"}}} | Out-File dif.txt
$x++
}
start .\dif.txt
also the out-file cmdlet doesnt work but that`s a dif topic
Thanks for any help in advance
This does not work as you expect:
Get-ChildItem ... -Path "C:\temp\parentF1\BackUp\$path[$x]"
When using -Path, PowerShell interprets [...] as part of its own wildcard syntax. Use -LiteralPath to prevent that.
Anything more complex than simple variable name ($var) must be enclosed in a subexpression $(...).
Similar issue:
Select-Object #{Label="$path[$x]"; ...
This can be solved by simply removing the quotation, as $path already contains strings.
Solution:
$F1 = Get-ChildItem -Recurse -LiteralPath "C:\temp\parentF1\BackUp\$($path[$x])" | ...
$F2 = Get-ChildItem -Recurse -LiteralPath "C:\temp\parentF2\BackUp\$($path[$x])" | ...
Compare-Object ... |
Select-Object #{Label=$path[$x]; ...
The above fixes your current code, but your code could be simplified like this to avoid the subexpressions:
foreach($currentPath in $path) {
$F1 = Get-ChildItem -Recurse -Path "C:\temp\parentF1\BackUp\$currentPath" |
Where-Object FullName -notlike $excludeF1
$F2 = Get-ChildItem -Recurse -Path "C:\temp\parentF2\BackUp\$currentPath" |
Where-Object FullName -notlike $excludeF2
Compare-Object -ref $F1 -dif $F2 |
Select-Object #{Label=$currentPath;e={$_.InputObject}},`
#{n="Fundort";e={if($_.SideIndicator -like "=>") {write-output "BackUp F1"}`
elseif($_.SideIndicator -like "<="){Write-Output "BackUp F2"}}} | Out-File dif.txt
}
I am trying to get directories that contain "COO", but after adding the Where-Object nothing is returned, the script is looping through each of the folders but nothing makes it to the file when the Where-Object is in place.
This works:
Get-ChildItem -Path $path -Recurse -Directory | select Fullname | Export-csv c:users\shay\desktop\test.csv
This doesn't:
Get-ChildItem -Path $path -Recurse -Directory | Select Fullname | Where-Object {$_.Fullname -like 'COO'} | Export-Csv c:users\shay\desktop\test.csv
In order to use the -Like parameter you'll need to include a wildcard (*), try the following:
Get-ChildItem -Path $path -Recurse -Directory | select Fullname | where-object {$_.Fullname -like '*COO*'} | Export-csv c:users\shay\desktop\test.csv
You could also potentially move the expression to the Get-ChildItem portion of this snippet.
Get-ChildItem -Path $path -Recurse -Directory -Filter '*COO*' | select Fullname | Export-csv c:users\shay\desktop\test.csv
I search for a file, e.g. the hosts file:
cd c:\Windows\System32
gci -Recurse | ? {$_.Name -eq 'hosts'}
Now I want to open the file in notepad, so I tried:
gci -Recurse | ? {$_.Name -eq 'hosts'} | notepad.exe $_.FullName
This errors. Is there a way to do this, as a one-liner?
notepad.exe does not accept pipeline output input
Get-ChildItem -Recurse -ErrorAction SilentlyContinue |
Where-Object -FilterScript { $_.Name -eq 'hosts' } |
Foreach-Object -Process { notepad.exe $_.FullName }
I would recommend using -Filter on get-childitem for this. It would greatly improve performance on the scriptlet.
-#matt
Get-ChildItem -Filter Hosts -Recurse -ErrorAction SilentlyContinue |
ForEach-Object -Process { notepad.exe $_.FullName }
I want to know how to log the actions from this script to a text file because I don't know how to do it as the cmdlet Start-Transcript doesn't work for me and I wasn't able to find a solution on the Internet.
The problem is that the Where-Object cmdlet doesn't output anything captured by Get-ChildItem.
Does anybody has a good idea to solve this?
$limit = (Get-Date).AddDays(-30)
$path = Split-Path -Parent $MyInvocation.MyCommand.Definition
Get-ChildItem -Path $path -Recurse -Force | Where-Object {
!$_.PSIsContainer -and
$_.LastWriteTime -lt $limit
} | Remove-Item -Force
Get-ChildItem -Path $path -Recurse -Force | Where-Object {
$_.PSIsContainer -and
(Get-ChildItem -Path $_.FullName -Recurse -Force | Where-Object {
!$_.PSIsContainer
}) -eq $null
} | Remove-Item -Force -Recurse
try something like this
$limit = (Get-Date).AddDays(-30)
$path =Split-Path -Parent $MyInvocation.MyCommand.Definition
Get-ChildItem $path -file -recurse -force | where LastWriteTime -lt $limit |
Tee-Object -FilePath "c:\temp\deleted.txt" -Append | Remove-Item
Get-ChildItem $path -directory |
where {(Get-ChildItem $_.FullName -file -Recurse | select -First 1) -eq $null} |
Tee-Object -FilePath "c:\temp\deleted.txt" -Append | Remove-Item
howdy error666,
you can use use a few different methods ...
Tee-Object = fork the stream to a file
-PipelineVariable = accumulate the info in a variable
use a loop = put a log-to-file step in it
put a ForEach-Object in the pipeline
that can both log your info and do the Remove-Item.
the loop is the easiest to understand. [grin] however, if you want to keep it in a pipeline, you could add a ForEach-Object where the Where-Object scriptblock is and put both the filter test and the various actions in that block.
take care,
lee
I was wondering how I can display a list of empty files in a directory
$test = gci "C:\Users\Freedom\Documents" -Recurse
$test | Where-Object {$_.PsISContainer} | Select-Object FullName | Where-Object {$_.GetFiles() -eq 0}
I Don't understand because when I do get-childitem | get-member I get a list of properties and methods I can use and in the list is getfiles() why can't I use this method why's it giving me an error message?
Method invocation failed because [System.IO.FileInfo] does not contain a method named 'GetFiles'.
I think you want this:
Get-ChildItem | Where-Object { (-not $_.PSIsContainer) -and ($_.Length -eq 0) }
If you have PowerShell 3.0 or later you can use this:
Get-ChildItem -File | Where-Object { $_.Length -eq 0 }
Of course you can add whatever other parameters for Get-ChildItem that you want (-Recurse, etc.).
Wow I had what I wanted mixed up! And I had to add the .count to the getfiles() method
$test | Where-Object {$_.PsISContainer} | Where-Object {$_.GetFiles().Count -eq 0} | Select-Object FullName
try this
Get-ChildItem "c:\temp" -File -Recurse | where Length -eq 0
Use Get-ChildItem and the File flag, -Recurse is needed to get every file in the folder and in the folder below. Then get all the files were Get-Content returns null.
Get-ChildItem $YourPath -Recurse -File | Where-Object {!(Get-Content $_.Fullname)}