Usage: ./sar2png.pl  -u | -r | -n <iface> | [ -s | -x | -y | -o | -h ]

 -u: CPU
 -r: RAM
 -n: NET
 -s: skip every x tick
 -h: this message
 -x: height
 -y: width
 -o: outpath

 Example: ./sar2png.pl -u -x 480 -y 640 -s 4 -o /home/stats/


You must have installed the CPAN module Chart::Lines to use this program.