I try to rename files with PwerShell Rename-Item cmdlet. Code below
Get-ChildItem -recurse * `
| ?{!$_.PsIsContainer} `
| Rename-Item -NewName {$_.FullName -Replace '.abcd#email.com','.abcd#email_A.com.abcd#email_B.com.abcd#email_E.com'}
But, PowerShel tells me about long path or file name; which is irrelevant to my process. But it is strongly necessary keep new long name.
How to except this error?
is it possible ask you about code example? The following commented code snippet (conservative approach) could help:
Get-ChildItem -recurse * | Where-Object {!$_.PsIsContainer} |
ForEach-Object {
### in regular expression: ↓ ↓ escape dots
$NewName = $_.Name -Replace '\.abcd#email\.com',
'.abcd#email_A.com.abcd#email_B.com.abcd#email_E.com'
### here is right place to check target filename length:
$targetLength = 1 + $_.DirectoryName.Length + $NewName.Length
Rename-Item -Path $_.FullName -NewName $NewName
}
Read Rename-Item reference and Regular Expression Language - Quick Reference.
Related
Hello and thanks in advance for the help. I am attempting to remove an extra extension that was added to documents in a library due to a security breach. When i manually remove the extension ".easy2lock" the file becomes available. However, when i try to do this programmatically via powershell it works, but not for folders with long paths. Does anyone know how to get around this in powershell?
I've tried tried updating my registry to allow long paths, however, i don't believe that has any affect on
here is the script and error i recieve:
[string]$DeleteBadExtension = ".easy2lock_read_me"
[string]$BadExtension = ".easy2lock"
Get-ChildItem -Filter "*$BadExtension" -Recurse | Rename-Item -NewName {$_.Name -replace $BadExtension, [string]::Empty}
Get-ChildItem *$DeleteBadExtension -Recurse | foreach { Remove-Item -Path $_.FullName }
I'll have to take your word for it that the files are usable after changing the name, that hasn't been my experience. To be able to access long paths in powershell you'll need to use the -LiteralPath parameter. Unfortunately the -Path parameter will be the default used when piping. -LiteralPath does take pipeline input by propertyname so you can either manipulate the object removing path and adding literal path like this
Get-ChildItem -Filter "*$BadExtension" -Recurse |
Select-Object Name,Basename,Extension,#{n='LiteralPath';e={"\\?\$($_.fullname)"}} |
Rename-Item -NewName {$_.Name -replace $BadExtension}
Or you can use a Foreach-Object or foreach loop and use the required syntax \\?\ for the path.
Get-ChildItem -Filter "*$BadExtension" -Recurse | Foreach-Object {
Rename-Item -LiteralPath "\\?\$($_.FullName)" -NewName ($_.Name -replace ‘$BadExtension’)
}
Edit
Since the basename is the desired filename (just without the unwanted extension) you can use the basename as the newname. All four examples have been tested and confirmed to work. If it's not working for you then there is something else going on.
Get-ChildItem -Filter *$BadExtension -Recurse | ForEach-Object {
Rename-Item -LiteralPath "\\?\$($_.FullName)" -NewName ($_.name -replace $BadExtension)
}
Get-ChildItem -Filter *$BadExtension -Recurse | ForEach-Object {
Rename-Item -LiteralPath "\\?\$($_.FullName)" -NewName $_.basename
}
Get-ChildItem -Filter "*$BadExtension" -Recurse |
Select-Object Name,#{n='LiteralPath';e={"\\?\$($_.fullname)"}} |
Rename-Item -NewName {$_.Name -replace $BadExtension}
Get-ChildItem -Filter "*$BadExtension" -Recurse |
Select-Object Basename,#{n='LiteralPath';e={"\\?\$($_.fullname)"}} |
Rename-Item -NewName {$_.baseName}
I have the following code but it is renaming folders and files. When i use basename it says the file i get an error that says the Source and destination path must be different.
I want to rename sd^fks.pdf to sd_fks.pdf
Get-ChildItem $dstpath -Recurse | `
Where-Object {$_.Name -match '^'} | `
Rename-Item -NewName { $_.Name -replace '^','_' }
Escape the circumflex character. Stick to the Name attribute. You might want to add -File to Get-ChildItem to only get files:
Get-ChildItem $dstpath -File -Recurse | Where-Object {$_.Name -match '\^'} | Rename-Item -NewName {$_.Name -replace '\^','_'}
You don't need the Where-Object clause for this. Instead use Filter which makes the code run faster aswell:
Get-ChildItem -Path $dstpath -Filter '*^*' -Recurse -File | Rename-Item -NewName { $_.Name -replace '\^','_' }
When in doubt, regex escape:
[regex]::escape('^')
\^
'^' means 'the beginning of the line in regex:
'hi' -replace '^','prefix-'
prefix-hi
Or plug the expression in at https://regex101.com and see what it says.
I am trying to rename a whole lot of files all located in one folder but in different subfolders. The files should be renamed so that their name consists of the foldername + the original file name. I am wondering if you could add a conditional statements so that the file name doesn't change if the file name already contains the folder name. The code below performs the function of renaming the files but doesn't contain the if statement.
dir -recurse | Rename-Item -NewName {$_.Directory.Name + " - " + $_.Name}
The code below is an example on how I imagine the code would look:
dir -recurse | if($_.Name -contains $_.Directory.Name) {Rename-Item -NewName {$_.Directory.Name + " - " + $_.Name}}
This should do it:
$rootFolder = 'D:\test'
Get-ChildItem -Path $rootFolder -File -Recurse | ForEach-Object {
$folder = $_.Directory.Name
if (!($_.Name.StartsWith($folder))) { $_ | Rename-Item -NewName ('{0} - {1}' -f $folder, $_.Name) }
}
Theo's answer works well, but there's an alternative that is both conceptually simpler and performs noticeably better:
You can take advantage of the fact that passing an unchanged file name to -NewName is a quiet no-op, so you can place all your logic in the -NewName script block:
Get-ChildItem -File -Recurse |
Rename-Item -NewName {
if ($_.Name -like ($_.Directory.Name + ' - *') { # already renamed
$_.Name # no change
}
else { # rename
$_.Directory.Name ' - ' + $_.Name
}
} -WhatIf
-WhatIf previews the renaming operation; remove it to perform actual renaming.
Rather than using ForEach-Object call with a nested Rename-Item call in its script block - which means that Rename-Item is called once for each input file - this solution uses a single pipeline with a single Rename-Item invocation, where the new name (if changed) is determined via a delay-bind script block - see this answer for details.
I was trying it in a way close to the way the question was asked. I wish I didn't have to add another foreach.
dir -recurse -file | & {
foreach ($i in $input) {
if(-not ($i.Name.contains($i.Directory.Name))) {
Rename-Item $i.fullname -NewName ($i.Directory.Name + ' - ' + $i.Name) -whatif
}
}
}
Or like this
dir -recurse -file | % {
if(-not ($_.Name.contains($_.Directory.Name))) {
Rename-Item $_.fullname -NewName ($_.Directory.Name + ' - ' + $_.Name) -whatif
}
}
I have a directory c:\test with files 0001 test.pdf, 0002ssssit.pdf, 0003llllllllllll.pdf
My goal is to use PS to use a a loop to go through the directory and rename the files to:
0001.pdf
0002.pdf
0003.pdf
I keep getting path errors
$List = get-childitem "C:\test"
$List |Format-Wide -Column 1 -property name
ForEach($File In $List)
{
$First4 = $File.name.substring(0,4)
Rename-Item -newname $First4".pdf"
}
You need to pass the original file path to Rename-Item, otherwise it won't know what to rename!
Either:
$file | Rename-Item -NewName "${First4}.pdf"
or
Rename-Item -LiteralPath $file.FullName -NewName "${First4}.pdf"
inside the foreach body.
You could also use a single pipeline to accomplish the same (-NewName supports pipeline binding):
$List | Rename-Item -NewName { $_.Name.Substring(0,4) + $_.Extension }
try Something like this:
Get-ChildItem "c:\temp" -file "*.pdf" |
where Name -match "^[0-9]{4}" |
rename-item -NewName {"{0}{1}" -f $_.BaseName.Substring(0, 4), $_.Extension}
I'm new in powershell, I have to execute the following statement recursively:
Get-ChildItem | ForEach-Object {Rename-Item $_ -NewName ("new_filename{0}.smali" -f $nr++)}
In other words I have to rename all the .smali files in the subdirectories with any other name different from the current one (keeping the .smali extension).
Get-ChildItem -Path FolderPath -Filter *.smali -Recurse | ForEach-Object{$_ | Rename-Item -NewName ($.BaseName + StringToAdd + $.Extension) -WhatIf}
Copy the above line as is... Replace the values for FolderPath and StringToAdd and give it a try. If everything looks fine then execute it by removing the -Whatif switch.
dir is an alias for Get-ChildItem which has a -Recursive parameter.
$nr = 0; Get-ChildItem -Recurse -Filter "*.smali" | Rename-Item -NewName "new_filename$($nr++).smali"
Things to note:
DIR is an alias for Get-ChildItem. Get-ChildItem is more Powershell-y
Your command only looked at the top level directory, so I added the -recurse
Your command would rename all files, not just the "*.smali", so I added the filter.