A scratch of swapping a dash for a period in AD>

AddSurNametoUpper.ps1

if ($user.Surname){
        "$user has a surname"
        $newSurname = $user.Surname.ToUpper()
        "changing to $newSurname"
        $user | Set-ADUser -Surname $newSurname -WhatIf
        }

Update-ADUserPhoneNumber.ps1

$users =Get-ADUser -Filter * -Properties telephonenumber

#Step through each object in $users, calling the current object $user
ForEach ($user in $users){
    #If the user has a telephone number property, they have a number set in AD.  If so, run this next script block
    if ($user.telephonenumber){
        #Make a temporary variable to hold the users new number
        $newphone = $user.telephonenumber.Replace('-','.')
        #Every string in .net has a .Replace method.  We use it to swap a '-' for a '.'
        
        #Echo out to the screen what we're doing
        "changing $($user.Name) Phone from $($user.telephonenumber) to $newphone"

        #Set the phonenumber in AD
        $user | Set-ADUser -OfficePhone $newphone -Verbose -WhatIf
        }
}