adding nummer5 tools

nummer5/nummer5-hosts-alive.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+. hosts.conf
+for host in $hosts; do
+    if ping -c 1 -W 1 "$host" >/dev/null; then
+        echo "$host is alive"
+    else
+        echo "$host is pining for the fjords"
+    fi
+done