Upload files to SharePoint site using PowerShell

Steps to upload files from file share location to sharepoint library with relevant metadata

$webUrl  = "http://contoso.com";  http://contoso.com Replace with your Site Url

$docLibraryName = "Documents"; Documents - Replace with your library name

$docFolderName =  "SharePoint"; SharePoint - Replace with Folder name if you have sub folders in Library

$docNumber = "SeachDocument.docx"; SeachDocument.docx - Replace with File name which you will have in file share location

try
{

$inputRowCollection = Get-ChildItem $DocumentsRepositoryPath -Recurse | Where-Object {$_.Name -like $docNumber+ "*"}

if($inputRowCollection.Count -eq 0)
{
$row.IsMigrated = "File Missing"
}

if($inputRowCollection.Count -eq 1)
{
$row.IsMigrated = UploadFileInLibrary $webUrl  $docLibraryName $inputRowCollection.PSPath $docFolderName
}
elseif($inputRowCollection.Count -ge 1)
{
$row.IsMigrated = "Duplicate Documents"
}
}          
catch          
{
Write-Host "File Path : ($inputRowCollection.PSPath) - Error ($documentData): "$_.Exception -f Red;
Write-Output "File Path : ($inputRowCollection.PSPath) - Error ($documentData): "$_.Exception >> $ExceptionLogFile
$logData = $logData + "`tNA`t" + $_.Exception + "`tFail`tNA"  
}

#Function to upload Document into SharePoint library
function UploadFileInLibrary          
{
[CmdletBinding()]          
Param(          
[Parameter(Mandatory=$true,ValueFromPipeline=$true)]          
[string]$webUrl,          
[Parameter(Mandatory=$true)]          
[string]$DocLibName,          
[Parameter(Mandatory=$true)]          
[string]$FilePath,            
[Parameter(Mandatory=$false)]          
[string]$FolderName
)              
       
 try
 {

#region Code for Migration
           
$spWeb = Get-SPWeb -Identity $webUrl

$List = $spWeb.Lists[$DocLibName]          
$folder = $List.RootFolder          
if($FolderName -ne "")
{
$folder = $list.RootFolder.SubFolders[$FolderName]
}
$FileName = $FilePath.Substring($FilePath.LastIndexOf("\")+1)          
$File= Get-ChildItem $FilePath  
$fileExtension = ([System.IO.FileInfo] (Get-Item $File.FullName)).Extension
[Microsoft.SharePoint.SPFile]$spFile = $spWeb.GetFile($folder.Url + "/" + $docNumber+$fileExtension)          
$flagConfirm = 'y'          
if($spFile.Exists -eq $true)          
{          
#    $flagConfirm = Read-Host "File $FileName already exists in library $DocLibName, do you    want to upload a new version(y/n)?"          
return "Document Exist."
}          
         
if ($flagConfirm -eq 'y' -or $flagConfirm -eq 'Y')          
{
$spWeb.AllowUnsafeUpdates = $true;
 
$fileStream = ([System.IO.FileInfo] (Get-Item $File.FullName)).OpenRead()
$fileExtension = ([System.IO.FileInfo] (Get-Item $File.FullName)).Extension
   #Add file          
   write-host -NoNewLine -f yellow "Copying file " $File.Name " to " $folder.ServerRelativeUrl "..."          
   [Microsoft.SharePoint.SPFile]$spFile = $folder.Files.Add($folder.Url + "/" + $docNumber+$fileExtension, [System.IO.Stream]$fileStream, $true)          
   write-host -f Green "...Success!"          
   #Close file stream          
   $fileStream.Close()          
   write-host -NoNewLine -f yellow "Update file properties " $spFile.Name "..."

#Check the whether exists or not in site
$docContentType = $docContentType

if($docContentType -eq $IMS)
{
$docContentType = $List.ContentTypes[$docContentType]
$spFile.Item["ContentTypeId"] = $docContentType.Id;
$spFile.Item["Content Type"] = $docContentType.Name;
$spFile.Item["Name"] = $docNumber
$spFile.Item["Title"] = $docTitle  
$spFile.Item.Update()          
write-host -f Green "...Success!"
$spFile.CheckIn("Checked In By Administrator");
            Write-Host "$($spFile.Name) Checked In" -ForeGroundColor Green
}

$spWeb.AllowUnsafeUpdates = $false;
}
       
         
return "Uploaded";

#endregion

}
catch
{
Write-Host "File Path : ($inputRowCollection.PSPath) - Error in DocumentsMigration method : "$_.Exception -f Red;
Write-Output "File Path : ($inputRowCollection.PSPath) - Error in DocumentsMigration method: "$_.Exception >> $ExceptionLogFile
return "Error while uploading";
}
}