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30.9. FAQ

30.9.1. Could not find/open font when opening font "arial", using internal non-scalable font

# yum install liberation-sans-fonts
			

30.9.2. 变量传递

			
images=test
gnuplot << EOF

set terminal png truecolor size 800,480
set output "$images.png"
set autoscale
set xdata time
set timefmt "%H:%M"
set format x "%H:%M"
set style data lines
set xlabel "2013-5-2 12:09 GMT+800"
set ylabel "Ounce/USD"
set title "http://www.example.com"
set grid
plot "$images.log" using 1:2 title "GOLD"
quit
EOF