CallStack printing

gistfile1.txt

$previousCallStack = $null
$callStackPath = Get-PSCallStack | Where-Object { $_.Command -ne "<ScriptBlock>" } | ForEach-Object {
    if (-not $previousCallStack -or $_.InvocationInfo.Line -ne $previousCallStack.InvocationInfo.Line -or $_.InvocationInfo.PipelineLength -ne $previousCallStack.InvocationInfo.PipelineLength -or $_.InvocationInfo.PipelinePosition -ne ($previousCallStack.InvocationInfo.PipelinePosition - 1)) {
        $previousCallStack = $_
        $_
    }
} | Group-Object Command | Select-Object -ExpandProperty Name
$callStackPath = ("> " + ($callStackPath -join "> ")).Trim()