set data style lines;
set autoscale
set grid
set key
set nologscale x
set nologscale y
set terminal gif small size 1200,600
set output "/tmp/tempgraph.gif"
set xdata time
set timefmt "%d %H:%M:%S"
set format x "%d"
set xrange ["01 00:00:00":"31 23:59:00"]
set yrange [*:*]
plot "/tmp/battgraph" every 2::0 using 1:4 smooth unique title 'Solar on/off' , "/tmp/battgraph" every 2::1 using 1:4 smooth unique title 'Batt Volt'
plot "/tmp/tempgraph" every 4::0 using 1:6 smooth unique title 'TRX' , "/tmp/tempgraph" every 4::2 using 1:6 smooth unique title'PWR' , "/tmp/tempgraph" every 4::1 using 1:6 smooth unique title'IN' , "/tmp/tempgraph" every 4::3 using 1:6 smooth unique title'OUT'