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Dear Fellow PSE Users,

Sync Folders with Powershell - New and edited Files

Determine installed PowerShell versionPowerShell says “execution of scripts is disabled on this system.”Can PowerShell trap errors in GetChildItem and continue looping?How do you comment out code in PowerShell?Powershell - Variables Array's - Finding Folders then Files in FolderPowershell trying to set-content of folders instead of filesPowershell - Skip files that cannot be accessedPowerShell to find folder / file sizePowershell and previous folder versionsMove files of certain type from one folder to another

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0

I am trying to Sync 2 Folders with Powershell.
Comparing and copying any new Files works just fine. But I want to additionally copy all files that got modified in the reference Foler.

The following Code works and copys all new Files which got created in the reference Folder.

$folderReference = 'C:UsersAdministratorDesktopTestA'
$folderToSync = 'C:UsersAdministratorDesktopTestB'

$referenceFiles = Get-ChildItem -Recurse -Path $folderReference 
$FolderSyncFiles = Get-ChildItem -recurse -Path $folderToSync

$fileDiffs = Compare-Object -ReferenceObject $referenceFiles -DifferenceObject $FolderSyncFiles 

foreach ($File in $fileDiffs)
 try 
 if ($File.SideIndicator -eq "<=")

 $FullSourceObject = $File.InputObject.Fullname
 $FullTargetObject = $File.InputObject.Fullname.Replace($folderreference, $folderToSync)

 Write-Host "copy File: " $FullSourceObject
 copy-Item -Path $FullSourceObject -Destination $FullTargetObject
 
 
 catch 
 Write-Error -Message "Something went wrong!" -ErrorAction Stop
 

Now I also want to copy the modified Files.
I tried -property LastWriteTime after the Compare-Objectbut I get a WriteErrorException when running the code.

Do you guys have some tips on how to get this Code to run properly?
Thanks in advance

powershell

share|improve this question

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I'd just use robocopy, it's built specifically for this type of task
  
  – James C.
  Mar 28 at 14:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  +1 for robocopy. can you share the error message you get? maybe put throw $_ in your catch to see what the error is
  
  – Anthony Stringer
  Mar 28 at 14:19
  

  
  
  
  

add a comment
 | 

0

I am trying to Sync 2 Folders with Powershell.
Comparing and copying any new Files works just fine. But I want to additionally copy all files that got modified in the reference Foler.

The following Code works and copys all new Files which got created in the reference Folder.

$folderReference = 'C:UsersAdministratorDesktopTestA'
$folderToSync = 'C:UsersAdministratorDesktopTestB'

$referenceFiles = Get-ChildItem -Recurse -Path $folderReference 
$FolderSyncFiles = Get-ChildItem -recurse -Path $folderToSync

$fileDiffs = Compare-Object -ReferenceObject $referenceFiles -DifferenceObject $FolderSyncFiles 

foreach ($File in $fileDiffs)
 try 
 if ($File.SideIndicator -eq "<=")

 $FullSourceObject = $File.InputObject.Fullname
 $FullTargetObject = $File.InputObject.Fullname.Replace($folderreference, $folderToSync)

 Write-Host "copy File: " $FullSourceObject
 copy-Item -Path $FullSourceObject -Destination $FullTargetObject
 
 
 catch 
 Write-Error -Message "Something went wrong!" -ErrorAction Stop
 

Now I also want to copy the modified Files.
I tried -property LastWriteTime after the Compare-Objectbut I get a WriteErrorException when running the code.

Do you guys have some tips on how to get this Code to run properly?
Thanks in advance

powershell

share|improve this question

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I'd just use robocopy, it's built specifically for this type of task
  
  – James C.
  Mar 28 at 14:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  +1 for robocopy. can you share the error message you get? maybe put throw $_ in your catch to see what the error is
  
  – Anthony Stringer
  Mar 28 at 14:19
  

  
  
  
  

add a comment
 | 

I am trying to Sync 2 Folders with Powershell.
Comparing and copying any new Files works just fine. But I want to additionally copy all files that got modified in the reference Foler.

The following Code works and copys all new Files which got created in the reference Folder.

$folderReference = 'C:UsersAdministratorDesktopTestA'
$folderToSync = 'C:UsersAdministratorDesktopTestB'

$referenceFiles = Get-ChildItem -Recurse -Path $folderReference 
$FolderSyncFiles = Get-ChildItem -recurse -Path $folderToSync

$fileDiffs = Compare-Object -ReferenceObject $referenceFiles -DifferenceObject $FolderSyncFiles 

foreach ($File in $fileDiffs)
 try 
 if ($File.SideIndicator -eq "<=")

 $FullSourceObject = $File.InputObject.Fullname
 $FullTargetObject = $File.InputObject.Fullname.Replace($folderreference, $folderToSync)

 Write-Host "copy File: " $FullSourceObject
 copy-Item -Path $FullSourceObject -Destination $FullTargetObject
 
 
 catch 
 Write-Error -Message "Something went wrong!" -ErrorAction Stop
 

Now I also want to copy the modified Files.
I tried -property LastWriteTime after the Compare-Objectbut I get a WriteErrorException when running the code.

Do you guys have some tips on how to get this Code to run properly?
Thanks in advance

powershell

share|improve this question

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

$folderReference = 'C:UsersAdministratorDesktopTestA'
$folderToSync = 'C:UsersAdministratorDesktopTestB'

$referenceFiles = Get-ChildItem -Recurse -Path $folderReference 
$FolderSyncFiles = Get-ChildItem -recurse -Path $folderToSync

$fileDiffs = Compare-Object -ReferenceObject $referenceFiles -DifferenceObject $FolderSyncFiles 

foreach ($File in $fileDiffs)
 try 
 if ($File.SideIndicator -eq "<=")

 $FullSourceObject = $File.InputObject.Fullname
 $FullTargetObject = $File.InputObject.Fullname.Replace($folderreference, $folderToSync)

 Write-Host "copy File: " $FullSourceObject
 copy-Item -Path $FullSourceObject -Destination $FullTargetObject
 
 
 catch 
 Write-Error -Message "Something went wrong!" -ErrorAction Stop
 

share|improve this question

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

share|improve this question

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

asked Mar 28 at 14:16

KamiRyuKamiRyu

311 bronze badge

1 Answer
1

active

oldest

votes

0

I'd just use robocopy, it's built specifically for this type of task and included in most modern versions of windows by default:

robocopy C:Source C:Destination /Z /XA:H /W:5

• 
  /Z - resumes copy if interrupted


• 
  /XA:H - ignores hidden files


• 
  /W:5 - shortens wait for failures to 5 sec (default 30)

Worth taking a look through the documentation as there's many different options for practically every situation you can think of...

For example, add /MIR and it will remove any files from the destination when they are deleted from source.

share|improve this answer

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But this would just copy everything from Source to Destination. My goal is to copy only files which are new or modified in the Source Foler. Would that also be possible?
  
  – KamiRyu
  Mar 28 at 14:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No it won't, Robocopy doesn't copy files if they are identical in source/destination.
  
  – James C.
  Mar 28 at 14:30
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. I got it working way easier than I thought!
  
  – KamiRyu
  Mar 28 at 14:59
  

  
  
  
  

add a comment
 | 

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0

I'd just use robocopy, it's built specifically for this type of task and included in most modern versions of windows by default:

robocopy C:Source C:Destination /Z /XA:H /W:5

• 
  /Z - resumes copy if interrupted


• 
  /XA:H - ignores hidden files


• 
  /W:5 - shortens wait for failures to 5 sec (default 30)

Worth taking a look through the documentation as there's many different options for practically every situation you can think of...

For example, add /MIR and it will remove any files from the destination when they are deleted from source.

share|improve this answer

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But this would just copy everything from Source to Destination. My goal is to copy only files which are new or modified in the Source Foler. Would that also be possible?
  
  – KamiRyu
  Mar 28 at 14:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No it won't, Robocopy doesn't copy files if they are identical in source/destination.
  
  – James C.
  Mar 28 at 14:30
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. I got it working way easier than I thought!
  
  – KamiRyu
  Mar 28 at 14:59
  

  
  
  
  

add a comment
 | 

0

I'd just use robocopy, it's built specifically for this type of task and included in most modern versions of windows by default:

robocopy C:Source C:Destination /Z /XA:H /W:5

• 
  /Z - resumes copy if interrupted


• 
  /XA:H - ignores hidden files


• 
  /W:5 - shortens wait for failures to 5 sec (default 30)

Worth taking a look through the documentation as there's many different options for practically every situation you can think of...

For example, add /MIR and it will remove any files from the destination when they are deleted from source.

share|improve this answer

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But this would just copy everything from Source to Destination. My goal is to copy only files which are new or modified in the Source Foler. Would that also be possible?
  
  – KamiRyu
  Mar 28 at 14:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No it won't, Robocopy doesn't copy files if they are identical in source/destination.
  
  – James C.
  Mar 28 at 14:30
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. I got it working way easier than I thought!
  
  – KamiRyu
  Mar 28 at 14:59
  

  
  
  
  

add a comment
 | 

I'd just use robocopy, it's built specifically for this type of task and included in most modern versions of windows by default:

robocopy C:Source C:Destination /Z /XA:H /W:5

• 
  /Z - resumes copy if interrupted


• 
  /XA:H - ignores hidden files


• 
  /W:5 - shortens wait for failures to 5 sec (default 30)

Worth taking a look through the documentation as there's many different options for practically every situation you can think of...

For example, add /MIR and it will remove any files from the destination when they are deleted from source.

share|improve this answer

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

robocopy C:Source C:Destination /Z /XA:H /W:5

share|improve this answer

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges

answered Mar 28 at 14:23

James C.James C.

9,32622 gold badges2222 silver badges3333 bronze badges