Rename a file with webClient (or other)

Question

I am downloading a file from a SharePoint document library to the file system using $webclient.DownloadFile($ServerFileLocation,$DownloadPath)
Once downloaded I would like to rename the file in SharePoint. I see no such method in webClient and wondered what the best way to go is?

Answer 1

try with the below client code:

string filename = "YourFileName.extension";
Response.AppendHeader("Content-Disposition","attachment; filename="+ filename  +"");

https://www.codeproject.com/Questions/508368/Topluschangeplusfileplusnameplusafterplusdownloadi

Thanks & Regards,

Answer 2

Gotcha, So you want to download files from the library to local system and then rename the files in a Library.

Below script will download all files from library to your local system:

#Config Variables
$SiteURL = "https://crescenttech.sharepoint.com/sites/marketing"
$FileRelativeURL = "/sites/Marketing/Shared Documents/Discloser Asia.docx"
$DownloadPath ="C:\Temp"

#Get Credentials to connect
$Cred = Get-Credential

Try {
    #Connect to PNP Online
    Connect-PnPOnline -Url $SiteURL -Credentials $Cred

    #powershell download file from sharepoint online
    Get-PnPFile -Url $FileRelativeURL -Path $DownloadPath -AsFile
}
catch {
    write-host "Error: $($_.Exception.Message)" -foregroundcolor Red
}

This below script will rename all files from Library.

#Config Variables
$SiteURL = "https://crescent.sharepoint.com/sites/marketing"
$LibraryName = "Documents"

#Connect to PnP Online
Connect-PnPOnline -Url $SiteURL -Credentials (Get-Credential)

#Get All Files from the document library
$Files = Get-PnPListItem -List $LibraryName -PageSize 1000 | Where {$_["FileLeafRef"] -like "*.*"}

#Loop through each File
Write-host -f Green "Number of Files Found:"$Files.Count
ForEach($File in $Files)
{ 
    Write-Host ("Renaming File '{0}' at {1}" -f $File["FileLeafRef"], $File["FileRef"])
    #Rename File
    Rename-PnPFile -ServerRelativeUrl $File["FileRef"] -TargetFileName "Old_$($File['FileLeafRef'])" -OverwriteIfAlreadyExists -Force
}

Reference:
https://www.sharepointdiary.com/2016/09/sharepoint-online-download-file-from-library-using-powershell.html
https://www.sharepointdiary.com/2017/10/sharepoint-online-rename-files-in-document-library-using-powershell.html

Thanks & Regards,

Answer 3

If you could accept not to use WebClient, you can use PowerShell CSOM to download the file and rename the file in one method.

Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll"  
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"  
   
Function DownloadAndRename-FileFromLibrary()  
{   
    param  
    (  
        [Parameter(Mandatory=$true)] [string] $SiteURL,  
        [Parameter(Mandatory=$true)] [string] $SourceFile,  
        [Parameter(Mandatory=$true)] [string] $TargetFile,  
        [Parameter(Mandatory=$true)] [string] $NewFileUrl  
    )  
   
    Try {  
        #Setup Credentials to connect  
        $username = "amos@contoso.onmicrosoft.com"  
        $password = "password"  
        $Cred = New-Object -TypeName System.Management.Automation.PSCredential -argumentlist $userName, $(convertto-securestring $Password -asplaintext -force)  
        $Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)  
        #if you are using SharePoint On premise,just delete the above Credentials script  
        #Setup the context  
        $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)  
        $Ctx.Credentials = $Credentials  

        $FileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($Ctx,$SourceFile)  
        $WriteStream = [System.IO.File]::Open($TargetFile,[System.IO.FileMode]::Create)  
        $FileInfo.Stream.CopyTo($WriteStream)  
        $WriteStream.Close()       
        Write-host -f Green "File '$SourceFile' Downloaded to '$TargetFile' Successfully!" $_.Exception.Message  
        $File = $Ctx.Web.GetFileByServerRelativeUrl($SourceFile)  
        $File.MoveTo($NewFileURL, [Microsoft.SharePoint.Client.MoveOperations]::Overwrite)  
        $Ctx.ExecuteQuery()       
        write-host -f Green "File Renamed successfully!"  
  }  
    Catch {  
        write-host -f Red "Error Downloading File!" $_.Exception.Message  
    }  
}  
   
#Set parameter values  
$SiteURL="https://contoso.sharepoint.com/sites/dev/"  
$SourceFile="/sites/dev/Shared Documents/1.pdf"  #Relative URL   
$TargetFile="C:\Temp\1.pdf"  
$NewFileURL="/sites/dev/Shared Documents/2.pdf"  
#Call the function to download file   
DownloadAndRename-FileFromLibrary -SiteURL $SiteURL -SourceFile $SourceFile -TargetFile $TargetFile -NewFileUrl $NewFileURL  

Reference:
https://www.sharepointdiary.com/2016/09/sharepoint-online-download-file-from-library-using-powershell.html
https://www.sharepointdiary.com/2017/10/sharepoint-online-rename-files-in-document-library-using-powershell.html
PNP powershell suggested by sharatha is also another solution.
PNP powershell installation

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