Added watch-host.ps1

scripts/watch-host.ps1

@@ -0,0 +1,88 @@
+<#
+.SYNOPSIS
+	Writes a value with unit and range
+.DESCRIPTION
+	This PowerShell script writes the given value with the unit and the value range to the console.
+.PARAMETER value
+	Specifies the value
+.EXAMPLE
+	PS> ./write-value.ps1 95.0 "°C" 0 10 90 100
+	[0--------95°C-100]
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetCPUTemperature {
+        $temp = 99999.9 # unsupported
+        if ($IsLinux) {
+                if (Test-Path "/sys/class/thermal/thermal_zone0/temp" -pathType leaf) {
+                        [int]$IntTemp = Get-Content "/sys/class/thermal/thermal_zone0/temp"
+                        $temp = [math]::round($IntTemp / 1000.0, 1)
+                }
+        } else {
+                $objects = Get-WmiObject -Query "SELECT * FROM Win32_PerfFormattedData_Counters_ThermalZoneInformation" -Namespace "root/CIMV2"
+                foreach ($object in $objects) {
+                        $highPrec = $object.HighPrecisionTemperature
+                        $temp = [math]::round($highPrec / 100.0, 1)
+                }
+        }
+        return $temp
+}
+
+function GetUptime {
+	if ($IsLinux) {
+                $uptime = (Get-Uptime)
+        } else {
+                $lastBootTime = (Get-CimInstance Win32_OperatingSystem).LastBootUpTime
+                $uptime = New-TimeSpan -Start $lastBootTime -End (Get-Date)
+        }
+	return $uptime.Days
+}
+
+function WriteValueInRange([float]$value, [string]$unit, [float]$redMin, [float]$yellowMin, [float]$yellowMax, [float]$redMax) {
+	$line = "------------------------------------------------"
+	$text = "[$redMin$($value)$unit $redMax]"
+	[float]$total = 20.0 - $text.Length
+	if ($value -gt $redMax) {
+		Write-Host "[$redMin$($line.Substring(0, $total))$redMax]" -noNewline
+		Write-Host "$($value)$unit " -noNewline -foregroundColor red
+	} elseif ($value -lt $redMin) {
+		Write-Host "$($value)$unit" -noNewline -foregroundColor red
+		Write-Host "[$redMin$($line.Substring(0, $total))$redMax] " -noNewline
+	} else {
+		[float]$leftSide = (($value - $redMin) * $total) / ($redMax - $redMin)
+		if ($leftSide -lt 1.0) { $leftSide = 1.0 }
+		if ($leftSide -gt ($total - 1.0)) { $leftSide = $total - 1.0 }
+		Write-Host "[$redMin$($line.Substring(0, $leftSide))" -noNewline
+		if (($value -le $yellowMin) -or ($value -ge $yellowMax)) {
+			Write-Host "$($value)$unit" -noNewline -foregroundColor yellow
+		} else {
+			Write-Host "$($value)$unit" -noNewline -foregroundColor green
+		}
+		Write-Host "$($line.Substring(0, $total - $leftSide + 0.49))$redMax] " -noNewline
+	}
+}
+
+try {
+	do {
+		$CPUtemp = GetCPUTemperature
+		$numProcesses = (Get-Process).Count
+		$numDaysUp = GetUptime
+
+		Clear-Host
+		Write-Host "`n* CPU TEMP  " -noNewline
+		WriteValueInRange $CPUtemp "°C" 0 10 80 100
+		Write-Host "`n* PROCESSES " -noNewline
+		WriteValueInRange $numProcesses "" 0 10 900 1000
+		Write-Host "`n* UPTIME    " -noNewline
+		WriteValueInRange $numDaysUp " days" 0 0 900 1000
+
+
+		Start-Sleep -milliseconds 1000
+	} while ($true)
+} catch {
+        "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+        exit 1
+}