hour=$(date '+%H')
gnuplot << EOF
set terminal png truecolor size 800,480
set output "/www/example.com/www.example.com/silver-hour.png"
set autoscale
set xdata time
set timefmt "%H:%M"
set xrange ["$hour:00":"$hour:60"]
set format x "%H:%M"
set style data lines
set xlabel "$datetime GMT+800"
set ylabel "Ounce/USD"
set title "SILVER - http://www.example.com"
set grid
plot "/var/tmp/silver.log" using 1:2 title "SILVER"
EOF
			
			

			
gnuplot << EOF
set terminal png truecolor size 800,480
set output "/www/example.com/www.example.com/silver-hour.png"
set autoscale
set xdata time
set timefmt "%m/%d/%y"
set xrange ["03/21/95":"03/22/95"]
set format x "%H:%M"
set style data lines
set xlabel "$datetime GMT+800"
set ylabel "Ounce/USD"
set title "SILVER - http://www.example.com"
set grid
plot "/var/tmp/silver.log" using 1:2 title "SILVER"
EOF