Remotely rename local account names, array iteration,

gistfile1.ps1

$comps = @("comp2", "comp1")

$comps | Foreach {
    if(Test-Connection $_ -q -count 1){
        $user = Get-WMIObject Win32_UserAccount -computername $_ -Filter "Name='@oldname'"
        $result = $user.Rename('@newname')
        if ($result.ReturnValue -eq 0) {
            return Get-WMIObject Win32_UserAccount -computername $_ -Filter "Name='@newname'"
            }
        }
    else{
        Write-Host "$_ Not found" -fore red
        }
    }