Comments point out tools to be used for monitoring. To be filled.
--- /dev/null
+#!/bin/bash
+
+#
+# monitor process characteristics using systat and iptables
+#
+# 2010, Razvan Deaconescu, razvan.deaconescu@cs.pub.ro
+#
+
+# per-process processor, disk and memory usage
+# pidstat
+
+# per-system
+# iostat (processor & disk usage), free -s 1 (memory usage)
+
+# per-process network bandwidth usage
+# iptables
+
+# per-system
+# /sys/class/net/$iface/statistics/{tx,rx}_bytes (C app for periodic checks)