I have to go through many levels of child folders and remove special characters that are invalid in SharePoint, mainly '#&'
I have scoured the internet trying different commands; rename-item/move-item, variations of the two, all to no avail. The closest i've gotten is using:
Get-ChildItem -Recurse | Rename-Item -NewName {$_.Name -replace'[!##&]','_'}
but i keep getting this error: Rename-item: Source and destination path must be different.
Could someone point me in the right direction?
Regards
That error only happens when you attempt to rename a directory to the same NewName as the current name, you can safely ignore it.
Add -ErrorAction SilentlyContinue to silently suppress the error message:
Get-ChildItem -Recurse | Rename-Item -NewName {$_.Name -replace'[!##&]','_'} -ErrorAction SilentlyContinue
You need to filter out the files that you're not planning to rename:
Get-ChildItem -Recurse |
Where-Object { $_.Name -match '[!##&]' } |
Rename-Item -NewName {$_.Name -replace '[!##&]','_'}
something like this may work
dir -Recurse -File | ? basename -Match '[!##&]' | % {
# if the file.txt already exists, rename it to file-1.txt and so on
$num = 1
$base = $_.basename -replace'[!##&]', '_'
$ext = $_.extension
$destdir = Split-Path $_.FullName
$newname = Join-Path $destdir "$base$ext"
while (Test-Path $newname) {
$newname = Join-Path $destdir "$base-$num$ext"
$num++
}
ren $_.fullname $newname
}
Related
I've searched through both StackOverflow and SuperUser to try to figure this out, and I'm still getting plagued by a problem I can't figure out how to fix. I know it's something simple, but after playing with it for an hour I'm still stumped. Simple question: how the heck do I tell Get-Childitem to exclude folders?
Right up front here's the code that doesn't work:
$sourceDir="E:\Deep Storage"
$targetDir="W:\Deep Storage"
$excludeThese = 'Projects2','Projects3','Projects4';
Get-ChildItem -Path $sourceDir -Directory -Recurse |
where {$_.fullname -notin $excludeThese} |
Get-ChildItem -Path $sourceDir | ForEach-Object {
$num=1
$nextName = Join-Path -Path $targetDir -ChildPath $_.name
while(Test-Path -Path $nextName)
{
$nextName = Join-Path $targetDir ($_.BaseName + "_$num" + $_.Extension)
$num+=1
}
$_ | Move-Item -Destination $nextName -Force -Verbose -WhatIf
}
}
The underlying concept here already works:
$sourceDir="E:\Deep Storage"
$targetDir="W:\Deep Storage"
Get-ChildItem -Path $sourceDir -File -Recurse | ForEach-Object {
$num=1
$nextName = Join-Path -Path $targetDir -ChildPath $_.name
while(Test-Path -Path $nextName)
{
$nextName = Join-Path $targetDir ($_.BaseName + "_$num" + $_.Extension)
$num+=1
}
$_ | Copy-Item -Destination $nextName -Verbose
}
Basically what this does is it moves folders from one place to another, and if files exist in both places, it renames files coming in. It helps keep my archive drive clear. But there are three folders there that I want to exclude because I still pull assets from them regularly, so I don't need those files moved.
Hence the difference between the two code samples: in the first one, I'm trying to get Get-Childitem to exclude a specific trio of folders, while this second one just grabs everything all at once.
I tried just doing a straight -Exclude with $excludeThese as the variable, without success; I tried skipping the variable approach altogether and just putting the folder names in after -Exclude. Still didn't work. I also tried putting in the entire path to the folders I wanted to exclude. No good--no matter what I did, the -WhatIf showed that the script was trying to move everything, including the folders I was theoretically excluding.
The last trick I tried was one I came across here on SO, and that was to go a gci with the exclude argument first, then do another gci after it. That still failed, so now I have to turn to the experts for help.
I would use a regex string created from the (escaped) directory names to exclude to make sure files withing these folders are ignored.
Also, by using a lookup Hashtable of all file names already present in the target folder, figuring out if a file with a certain name already exists is extremely fast.
$sourceDir = 'E:\Deep Storage'
$targetDir = 'W:\Deep Storage'
$excludeThese = 'Projects2','Projects3','Projects4';
# create a regex string with all folder names to exclude combined with regex OR (|)
$excludeDirs = ($excludeThese | ForEach-Object { [Regex]::Escape($_) }) -join '|'
# create a lookup Hashtable and store the filenames already present in the destination folder
$existingFiles = #{}
Get-ChildItem -Path $targetDir -File | ForEach-Object { $existingFiles[$_.Name] = $true }
Get-ChildItem -Path $sourceDir -File -Recurse |
Where-Object {$_.DirectoryName -notmatch $excludeDirs} |
ForEach-Object {
# construct the new filename by appending an index number if need be
$newName = $_.Name
$count = 1
while ($existingFiles.ContainsKey($newName)) {
$newName = "{0}_{1}{2}" -f $_.BaseName, $count++, $_.Extension
}
# add this new name to the Hashtable so it exists in the next run
$existingFiles[$newName] = $true
# use Join-Path to create a FullName for the file
$newFile = Join-Path -Path $targetDir -ChildPath $newName
$_ | Move-Item -Destination $newFile -Force -Verbose -WhatIf
}
Assuming the excluded directories are at the top:
$sourceDir="E:\Deep Storage"
$excludeThese = 'Projects2','Projects3','Projects4'
get-childitem $sourcedir -exclude $excludethese | get-childitem -recurse
I am doing some batch file name updates and am having trouble including folders. I have it currently set to target only specific file types, but I also want to include folders. Since folders don't have an extension I am unsure how to specify folders in the "-include" string. Any help would be greatly appreciated.
Here is what I am currently working with, but it ignores folders when I would like them included.
Get-ChildItem k:/toolbox/powershell -Include *.gif, *.jpg, *.png, *.xls,
*.xlsx, *.ppt, *.pptx, *.doc, *.docx, *.pdf -recurse | where {$_.name -match
"_"} | foreach {
$New=$_.name.Replace("_","-")
Rename-Item -path $_.Fullname -newname $New -passthru
}
(Get-Item '~\Desktop\*') | foreach { $FolderName = $_.name.Replace("_","-"); Rename-Item -path $_.fullname -newname $FolderName -passthru }
I would just add 2nd statement:
Get-ChildItem "k:/toolbox/powershell" -Recurse |where mode -eq d----- | where {$_.name -match "_"} | foreach {$New=$_.name.Replace("_","-")
Rename-Item -path $_.Fullname -newname $New -passthru }
If you run Get-ChildItem "k:/toolbox/powershell" you will receive a list of items where the "Mode" is "d-----" for directories, hence you can use that filter criteria for directories
I have a lot of files in a directory containing square brackets for example:
Filename 1 [12454365].txt
I tried the following script but it's giving me the an error.
get-childitem -recurse | foreach { move-item -literalpath $_.name ($_.name -replace '\[.*\]', '')}
Error message
move-item : A device attached to the system is not functioning.
Only want to remove square brackets not everything in between!
If you specify -Recurse, you will need to specify the file with FullName because it will be targeted other than the current directory.
(Get-ChildItem -File -Recurse) | foreach {
$dest = Join-Path $_.DirectoryName ($_.Name -replace "[\[\]]")
Move-Item -LiteralPath $_.FullName $dest
}
Also, it is better to use Rename-Item for file renaming.
(Get-ChildItem -File -Recurse) | Rename-Item -NewName { $_.Name -replace "[\[\]]" }
I believe the issue is that you are replacing the brackets and everything in between.
Get-ChildItem * -Filter "*`[*`]*" | Rename-Item -NewName { $_.name -replace '\[','' -replace '\]','' }
I need to swap the names of some files. The files are in the same location so I planned to move them to a staging ground to avoid having two files with the same name. I am attempting to identify the file, based on name parameters, move it to the staging ground and rename it.
I would like to use something similar to the following:
Get-ChildItem ".\" -Recurse | Where-Object { $_.Name -like "*XYZ*"} | Move-Item -Force -Destination "C:\new\" | Rename-Item -NewName { $_.Name -replace 'XYZ','ABC' }
The file moves, but does not rename. Am I not able to pipe the move-item to rename-item?
I would be happy to know if there is a better way to swap the file names of two files without moving, but also would like to know why the above isn't working.
Thanks!
By default Move-Item will not pass the current object along the pipeline.
You can use the -Passthru switch to get that functionality:
Move-Item -Force -Destination "C:\new\" -Passthru
Alternatively, you could cut out Rename-Item by having the Move-item destination be a file:
Get-ChildItem ".\" -Recurse |
Where-Object { $_.Name -like "*XYZ*"} |
Move-Item -Force -Destination "C:\new\$($_.Name -replace 'XYZ','ABC')"
Swapping implies two renames which only can take place with one temporary location or a temporary name.
IMO one temporary name is easier.
#Requires -Version 3.0
(Get-ChildItem ".\*XYZ*" -File -Recurse) | ForEach-Object {
$Swap = $_.Replace("XYZ","ABC")
If (Test-Path $Swap){
Rename-Item $Swap -NewName "$Swap.bak"
$_ | Rename-Item -NewName $Swap
Rename-Item "$Swap.bak" -NewName $_.FullName
} else {
$_ | Rename-Item -NewName $Swap
}
}
I have a file directory that contains many folders within it. Inside each of these sub-folders, I have a variety of files. I would like to go through each file, rename some of the items, and add extensions to some of them. I am using Powershell to do this.
I have file names with "." that all need to be replaced with "_" for example, "wrfprs_d02.03" should be "wrfprs_d02_03". I was able to successfully do that in one folder with the following code:
dir | rename-item -NewName {$_.name -replace "wrfprs_d02.","wrfprs_d02_"}
After, I make those replacements, I want to add .grb extensions on to some of the files, which all happen to start with "w", and I was able to do that within one folder with:
Get-ChildItem | Where-Object {$_.Name -match "^[w]"} | ren -new {$_.name + ".grb"}
When I step back from one folder and try to do it iteratively within many folders, my code doesn't work. I am in a directory called "Z:\Windows.Documents\My Documents\Test_data\extracted" which contains all my sub-folders that I want to iterate over. I am using the following code:
$fileDirectory = "Z:\Windows.Documents\My Documents\Test_data\extracted"
foreach($file in Get-ChildItem $fileDirectory)
{
dir | rename-item -NewName {$_.name -replace "wrfprs_d02.","wrfprs_d02_"}
Get-ChildItem | Where-Object {$_.Name -match "^[w]"} | ren -new {$_.name + ".grb"}
}
Any ideas on what my problem is?
because you $_ is replaced into loop when you use pipe. I propose you a new code:
$fileDirectory = "Z:\Windows.Documents\My Documents\Test_data\extracted"
Get-ChildItem $fileDirectory -recurse -file -filter "*.*" |
%{
#replace . by _
$NewName=$_.Name.Replace(".", "_")
#add extension grb if name start by w
if ($NewName -like "w*") {$NewName="$NewName.grb"}
#Add path file
$NewName=Join-Path -Path $_.directory -ChildPath $NewName
#$NewName
#rename
Rename-Item $_.FullName $NewName
}
Not sure what error you were getting, but using rename-item can be finicky. Or at least so in my experience.
I used the follow without issue. My files names were different so I replaced all periods with underscores. If the file starts with "W" then it changed the extension for that file.
$FilePath = Get-ChildItem "Z:\Windows.Documents\My Documents\Test_data\extracted" -Recurse -File
foreach ($file in $FilePath)
{
$newName = $file.Basename.replace(".","_")
$New = $newName + $file.Extension
if($file.Name -match "^[w]")
{
Rename-Item $file.FullName -NewName "$($New).grb"
}
else
{
Rename-Item $file.FullName -NewName $New
}
}
Hope that helps.