Added watch-ping.ps1

scripts/watch-ping.ps1

@@ -0,0 +1,76 @@
+<#
+.SYNOPSIS
+	Watch pinging a host
+.DESCRIPTION
+	This PowerShell script pings the given host continously and shows the roundtrip times in a horizontal chart.
+.PARAMETER hostname
+	Specifies the hostname or IP address to ping (windows.com by default)
+.PARAMETER timeInterval
+	Specifies the time interval in milliseconds between two pings (1000 by default)
+.EXAMPLE
+	PS> ./watch-ping.ps1
+
+	   PING ROUNDTRIP TIMES TO: windows.com
+	#1 ██████████████ 136ms
+	#2 ████████████████ 154ms
+	#3 █████████████████████████ 234ms
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$hostname = "windows.com", [int]$timeInterval = 1000)
+
+function GetPingLatency([string]$hostname) {
+	$hostsArray = $hostname.Split(",")
+	$tasks = $hostsArray | foreach {
+		(New-Object Net.NetworkInformation.Ping).SendPingAsync($_,1000)
+	}
+	[Threading.Tasks.Task]::WaitAll($tasks)
+	foreach($ping in $tasks.Result) { 
+        	if ($ping.Status -eq "Success") { return $ping.RoundtripTime }
+	}
+	return 1000
+}
+
+function WriteChartLine { param([float]$value, [float]$maxValue, [string]$text)
+	$num = ($value * 108.0) / $maxValue
+	while ($num -ge 1.0) {
+		Write-Host -noNewLine "█"
+		$num -= 1.0
+	}
+	if ($num -ge 0.875) {
+		Write-Host -noNewLine "▉"
+	} elseif ($num -ge 0.75) {
+		Write-Host -noNewLine "▊"
+	} elseif ($num -ge 0.625) {
+		Write-Host -noNewLine "▋"
+	} elseif ($num -ge 0.5) {
+		Write-Host -noNewLine "▌"
+	} elseif ($num -ge 0.375) {
+		Write-Host -noNewLine "▍"
+	} elseif ($num -ge 0.25) {
+		Write-Host -noNewLine "▎"
+	} elseif ($num -ge 0.125) {
+		Write-Host -noNewLine "▏"
+	}
+	Write-Host " $text"
+}
+
+try {
+	Write-Host "`n   PING ROUNDTRIP TIMES TO: $hostname" -foregroundColor green
+	[int]$count = 1
+	do {
+		Write-Host "#$count " -noNewline
+		[float]$latency = GetPingLatency $hostname
+		WriteChartLine $latency 1000.0 "$($latency)ms"
+		Start-Sleep -Milliseconds $timeInterval
+		$count++
+	} while($true)
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}