diff --git a/plot.sh b/plot.sh
new file mode 100755
index 0000000..f70bd20
--- /dev/null
+++ b/plot.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+#           THIS IS A KLUDGE 
+
+
+DATAFILE="serial/foo.dat"
+IMAGE="graphe.png"
+TMPFILE="/tmp/tmpdata"
+
+tail -400 < ${DATAFILE} > ${TMPFILE}
+
+gnuplot << __EOC__
+set term png 	size 1000,700
+set output 	"${IMAGE}"
+set ytics	2
+set xtics	
+set grid	front
+set title	"* Temperatures *"
+set xdata 	time
+set timefmt 	"%s"
+set format x 	"%d\n%H:%M"
+set yrange [ 0.0 : 30.0 ]
+plot	"${TMPFILE}" using 1:3 title "ambient" with lines, \
+	"${TMPFILE}" using 1:4 title " inside" with lines
+__EOC__
+
+display ${IMAGE}
+
+