Network Connectivity Test

#Why have you forsaken me ISP?
ping bing with extra steps
#by David Lee
#made for when my isp is mad at me
#clears dns cache,  pings a target site, and displays the results
#if you use this, update lines ~41-49 to update the dumpfile

#clear dns cache as a precaution
Clear-DnsClientCache 

#checks and or sets target
if ($null -eq $Target ) {
    #if variable does not exist, make variable
    New-Variable -Name "Target" -Value "Bing.com" 
    #Write-Host "target variable created"
    ##uncomment for debugging
}
elseif ($null -ne $Target) {
    Write-Host "target site is"$Target -ForegroundColor Gray
} 

#counts total pings
if ($null -eq $Counter) {
    #if variable does not exist, make variable
    New-Variable -Name "Counter" -Value 0 
    #Write-Host "counter variable created"
    ##uncomment for debugging
}
elseif ($null -ne $Counter) {
    #reset counter to 0  
    $Counter = 0 
    #Write-Host "counter variable reset"
    ##uncomment for debugging
}

while ($Counter -lt 500) {
    #if I forget this is running, this will prevent it from going on forever
    Start-Sleep -Seconds 3
    Test-Connection bing.com > C:\Users\David\Documents\pingBingDump.txt #&& ConvertTo-Csv C:\Users\David\Documents\pingBingDump.csv 
    #output to txt and csv
    Get-Content C:\Users\David\Documents\pingBingDump.txt -First 4 | Write-Host -ForegroundColor White
    #Test-Connection bing.com > C:\Users\David\Documents\pingBingDump.txt #temporary dumpfile 
    #Get-Content C:\Users\David\Documents\pingBingDump.txt -First 4 | Write-Host -ForegroundColor White
    #if run into errors, diagnose by changing line 4 > to >> and see what is being written in pingBingDump
    get-date | Write-Host -ForegroundColor Gray 
    $Counter += 1
    Write-Host count: $Counter -ForegroundColor Red
}
write-host "Max ping count reached"

#https://devblogs.microsoft.com/scripting/powertip-read-first-line-of-file-with-powershell/