send headers at the end, after generating images

diff --git a/temp.sh b/temp.sh
index 837f3e5..0f9030f 100755 (executable)
--- a/temp.sh
+++ b/temp.sh
@@ -2,11 +2,8 @@
 
 # install as cgi-script and invoke to get png
 
-echo Location: http://192.168.3.2/m1.gray.png
-echo
-
 #ssh rpi 'cat `ls -t /dev/shm/vaillant.* | head -1` | sed "s/  .*| */ /"' > /dev/shm/temp.tsv
-tail -8640 `ls -t /dev/shm/vaillant.* | head -1` | sed "s/  .*| */ /" > /dev/shm/temp.tsv
+tail -4320 `ls -t /dev/shm/vaillant.* | head -1` | sed "s/  .*| */ /" > /dev/shm/temp.tsv
 cd /home/pi/vaillant-thermostat/
 gnuplot temp.gnuplot
 montage /dev/shm/[1-3].png -tile 1x3 -geometry +0+0 /tmp/m1.png
@@ -14,3 +11,6 @@ montage /dev/shm/[1-3].png -tile 1x3 -geometry +0+0 /tmp/m1.png
 convert /tmp/m1.png -gravity center -extent 600x800 -colorspace Gray /tmp/m1.gray.png
 #display /tmp/m1.pgm
 
+echo Location: http://192.168.3.2/m1.gray.png
+echo
+