newbie here. I am trying to write a PowerShell script to:
loop through all files in directory
List item
Get all .pdf files ONLY
Rename them-the file names are long - over 30 chars
-They contain 2 numbers which I need to extract
-Example:
Cumulative Update 11 for Microsoft Dynamics NAV 2018 (Build 25480).pdf ->
RESULT : = 18CU11.pdf
I tried examples from bunch of sites and I can't seem to even loop successfully.
Either get an error - that path doesn't exist or that can't rename files as somehow loop gets a filepath and that I can't rename
Get-ChildItem "C:\Users\******\Desktop\PowerShell Practice" -Filter *.pdf | #create list of files
ForEach-Object{
$oldname = $_.FullName;
$newname = $_.FullName.Remove(0,17);
#$newname = $_.FullName.Insert(0,"CU")
Rename-Item $oldname $newname;
$oldname;
$newname; #for testing
}
That's just latest attempt, but any other ways of doing it will be fine - as long as it does the job.
Try this logic:
[string]$rootPathForFiles = Join-Path -Path $env:USERPROFILE -ChildPath 'Desktop\PowerShell Practice'
[string[]]$listOfFilesToRename = Get-ChildItem -Path $rootPathForFiles -Filter '*.PDF' | Select-Object -ExpandProperty FullName
$listOfFilesToRename | ForEach-Object {
#get the filename wihtout the directory
[string]$newName = Split-Path -Path $_ -Leaf
#use regex replace to apply the new format
$newName = $newName -replace '^Cumulative Update (\d+) .*NAV 20(\d+).*$', '$2CU$1.pdf' # Assumes a certain format; if the update doesn't match this expectation the original filename is maintained
#Perform the rename
Write-Verbose "Renaming '$_' to '$newName'" -Verbose #added the verbose switch here so you'll see the output without worrying about the verbose preference
Rename-Item -Path $_ -NewName $newName
}
Check the Help for Rename-Item. The Parameter -NewName requires the name of the file only, not the full path.
Try out this:
Get-ChildItem "C:\Users\******\Desktop\PowerShell Practice-Filter" -Filter *.pdf | #create list of files
ForEach-Object{
$oldname = $_.FullName
$newname = $_.Name.Remove(0,17)
Rename-Item -Path $oldname -NewName $newname
$oldname
$newname #for testing
}
Please try this
Get-ChildItem -Path "C:\Users\******\Desktop\PowerShell Practice-Filter" -Filter *.pdf | Rename-Item -NewName $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 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 need to bulk rename files in a file share that
contain a specific character, namely a tilde ~ and
have the file extension in capital letters or none at all.
The goal would be to replace the tilde with a simple -, keep the file extension, if there is one, but transform it into lowercase letters.
I've had success with the first part of the script that finds the files
$PATH = "\\<Fileservername>\<Folder>\"
$pattern = "*~*"
Get-ChildItem $PATH -Recurse | where {$_.Name -like $pattern}
What I'm struggling with is the second part of the script the renaming.
I've found two topics here:
Powershell renaming a specific Character
PowerShell Regex Bulk Replace Filenames
I haven't been able to adapt those solutions to my need plus there may be additional steps to take in order to convert the given file name from capital letters to lowercase letters or skip this if the file has no file extension.
An example would be to rename ACUJLH~H to ACUJLH-H and KYA3BM~Q.PDF to KYA3BM-Q.pdf.
Here's my contribution. I have added the -File switch to the Get-ChildItem cmdlet so it will look for files only and will not try and handle directory names.
Also, I have changed the replace pattern to ~+ so files that have repeating tildes will be replaced with a single - character. (KYA3BM~~~~Q.PDF becomes KYA3BM-Q.pdf)
$path = "D:\Code\PowerShell\StackOverflow"
$pattern = "*~*"
Get-ChildItem $path -Recurse -File | Where-Object {$_.Name -like $pattern} |
ForEach-Object {
$directory = $_.DirectoryName # or [System.IO.Path]::GetDirectoryName($_.FullName) or use Split-Path $_.FullName -Parent
$filename = $_.BaseName -replace '~+', '-' # or [System.IO.Path]::GetFileNameWithoutExtension($_.Name) -replace '~+', '-'
$extension = $_.Extension # or [System.IO.Path]::GetExtension($_.Name)
if (![string]::IsNullOrEmpty($extension)) { $filename += $extension.ToLower() }
$newname = Join-Path -Path $directory -ChildPath $filename
Rename-Item -LiteralPath $_.FullName -NewName $newName -Force
}
You will need to filter files those meets your criteria. Then using ForEach-Object compare for extensions and build new file names for every found item. Finally, using Rename-Item cmdlet you make the change.
$PATH = '\\<Fileservername>\<Folder>\'
Get-ChildItem $PATH -Recurse -Include '*~*' | ForEach-Object {
[String]$Extension = [System.IO.Path]::GetExtension($_)
[String]$NewFileName = [System.IO.Path]::GetFileNameWithoutExtension($_.Name) -replace '~','-'
if ($Extension){ $NewFileName += $Extension.ToLower() }
Rename-Item $_.FullName $(Join-Path ([System.IO.Path]::GetDirectoryName($_)) $NewFileName) -Force
}
I have a file directory that contains many folders within it. Inside each of these sub-folders, I have a variety of files. I would like to go through each file, rename some of the items, and add extensions to some of them. I am using Powershell to do this.
I have file names with "." that all need to be replaced with "_" for example, "wrfprs_d02.03" should be "wrfprs_d02_03". I was able to successfully do that in one folder with the following code:
dir | rename-item -NewName {$_.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 $New
}
}
Hope that helps.
I have to go through many levels of child folders and remove special characters that are invalid in SharePoint, mainly '#&'
I have scoured the internet trying different commands; rename-item/move-item, variations of the two, all to no avail. The closest i've gotten is using:
Get-ChildItem -Recurse | Rename-Item -NewName {$_.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
}