Power Shell Script to copy a File to all sub webs to the Folder location:

 cls

if((Get-PSSnapin | Where {$_.Name -eq "Microsoft.SharePoint.PowerShell"}) -eq $null)

{

Add-PSSnapin Microsoft.SharePoint.PowerShell;

}

get-PSSnapin Microsoft.SharePoint.PowerShell

Start-SPAssignment -Global

#-------------------------------------------

#static parameters

$site = Get-SPSite "http://sp2013:90/sites/test/"

$Web = Get-SPWeb "http://sp2013:90/sites/test/"

$Sourcefile = $Web.GetFile("http://sp2013:90/sites/test/DocSlide/youfilename.txt");

$TargetFolderName = "Site Assets"

#end of Static parameters

foreach($subsite in $Web.Webs)

{

Write-output("Web Title: "+ $subsite.Title)

$list = $subsite.Lists.TryGetList($TargetFolderName)

if($list -ne $null)

{

if($list.Folders.Count >0)

{

foreach($folder in $list.Folders)

{

if($folder.Name -eq $TargetFolderName)

{

CopyToFolder( $folder.Url,$subsite)

}

}

}

else

{

write-output("Folder is not available ")

}

}

}

function CopyToFolder()

{

param($folderUrl)

param($subsite)

$DesFolder = $subsite.GetFolder($TargetFolderName);

$content = $Sourcefile.OpenBinary()

$Destiantion = $subsite.GetFolder($folderUrl)

write-output(" Destination Folder Name: "+$folder.url)

$newFile = $Destiantion.Files.Add($Sourcefile.Name, $content ,$false)

$DesFolder.Update();

}

$site.Dispose();

Stop-SPAssignment-Global