Lock/ Unlock sites

Lock/UnLock sites:

Add-PSSnapin Microsoft.SharePoint.Powershell

$CurrentDirectory =  Split-Path -parent $MyInvocation.MyCommand.Definition

$Sites= Get-content "$CurrentDirectory\R2Readonly\sitename.txt";

#$Sites= Get-content "$CurrentDirectory\R2Readonly\R2sitename.txt";

Add-Content -Path $logpath -Value ("SiteCollection Url"+","+"Site Owner" )

$input = read-host "Please enter 1 to lock and 2 for unlock sites"

foreach ($site in $Sites)

{

    if($input -eq 1)

    {

         Set-SPSite -Identity $site -LockState "ReadOnly"

        write-host $site " locked" -BackgroundColor Yellow -ForegroundColor Red

      }

   if($input -eq 2)

    {

    

        Set-SPSite -Identity $site -LockState "Unlock"

        write-host $site " Unlock" -BackgroundColor Yellow -ForegroundColor Red

    }

}