implement watch function in profile.ps1

profile.ps1

@@ -91,6 +91,22 @@ function fsh {
 
     Enter-PSSession @PSBoundParameters @args
 }
+function watch {
+    param (
+        [int]$n = 2,
+
+        [Parameter(Mandatory,
+                   Position = 0)]
+        $ScriptBlock
+    )
+
+    while ($true) {
+        $o = Invoke-Command -ScriptBlock $ScriptBlock
+        Clear-Host
+        $o
+        Start-Sleep -Seconds $n
+    }
+}
 
 #check for old version
 if($PSVersionTable.PSVersion.Major -le 5){