Plotting of the nodes usage.

diff --git a/nodes.dem b/nodes.dem
new file mode 100755 (executable)
index 0000000..4f4f509
--- /dev/null
+++ b/nodes.dem
@@ -0,0 +1,10 @@
+#! /usr/bin/gnuplot -p
+
+set xdata time
+set timefmt "%Y-%m-%d %H:%M:%S"
+set format x "%Y-%m-%d"
+
+set xtics rotate by -20
+
+#plot for [i=3:26] 'nodes.dat' using 1:(column(i+1)) title column(i) with lines
+plot for [i=3:26] 'nodes.dat' using 1:(sum [col=4:i+1] column(col)) notitle with lines