ClearSPCache.ps1

# Load snap-in if not already
if ((Get-PSSnapin "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null) 
{
    Add-PSSnapin "Microsoft.SharePoint.PowerShell"
}

# Stop timer service and begin cache-clearing
Stop-Service SPTimerV4
$folders = Get-ChildItem C:\ProgramData\Microsoft\SharePoint\Config 
foreach ($folder in $folders)
    {
    $items = Get-ChildItem $folder.FullName -Recurse
    foreach ($item in $items)
        {
            if ($item.Name.ToLower() -eq "cache.ini")
                {
                    $cachefolder = $folder.FullName
                }
                
        }
    }
$cacheIn = Get-ChildItem $cachefolder -Recurse
    foreach ($cachefolderitem in $cacheIn)
        {
            if ($cachefolderitem -like "*.xml")
                {
                   $cachefolderitem.Delete()
                }
        
        }
        
$a = Get-Content  $cachefolder\cache.ini
$a  = 1
Set-Content $a -Path $cachefolder\cache.ini

read-host "press ENTER once script has been run on ALL servers on which you wish to clear the cache to restart the timer service" 
start-Service SPTimerV4