enhanced gnuplotting

rrdb/getvalues.sh

@@ -4,7 +4,8 @@ source ./commun.sh
 
 tmpf="somevalues.dat"
 
-rrdtool fetch $RRDB LAST			|
+rrdtool fetch $RRDB LAST			\
+	--start 0				|
 tr -d ':'					|
 awk	'
 	(!/nan/ && NF==2) { print $1, $2 }
@@ -15,11 +16,14 @@ awk	'
 # as an example, we are gnuploting our datas
 #
 gnuplot << __EOC__
-set term png size 800,600
+set term png size 1024,512
 set output "graphe.png"
 set grid
-plot "${tmpf}" with lines
+set xdata time
+set timefmt "%s"
+set format x "%m/%d\n%H:%M"
+plot "${tmpf}" using 1:2 with lines
 __EOC__
 
-rm ${tmpf}
+# rm ${tmpf}
 

rrdb/insert.sh

@@ -5,7 +5,7 @@ source ./commun.sh
 ctime=$(date +'%s')
 value=$(cut -d ' ' -f 1 /proc/loadavg)
 
-# write value to a file
+# display and write value to a file
 echo ${ctime} ${value} | tee -a bar.dat
 
 # inject value in the rrdb file