Added onos-die command and added some info output to onos-kill command.

Change-Id: I32968907b5f69a334d82048658210e08b109ba23

+#!/bin/bash
+# -----------------------------------------------------------------------------
+# Remotely kills and stops the ONOS service on the specified node.
+# -----------------------------------------------------------------------------
+
+onos-kill "${1:-$OCI}" && onos-service "${1:-$OCI}" stop

@@ -6,4 +6,13 @@
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
 . $ONOS_ROOT/tools/build/envDefaults
 
-ssh $ONOS_USER@${1:-$OCI} "kill -9 \$(ps -ef | grep karaf.jar | grep -v grep | cut -c10-15)"
+ssh $ONOS_USER@${1:-$OCI} "
+    pid=\$(ps -ef | grep karaf.jar | grep -v grep | cut -c10-15 | tr -d ' ')
+    if [ -n \"\$pid\" ]; then
+        echo \"Killing ONOS process \$pid on \$(hostname)...\"
+        kill -9 \$pid
+    else
+        echo \"ONOS process is not running...\"
+        exit 1
+    fi
+"