RRDtool Graph Syntax
RRDtool Command:
/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start='1526430705' \
--end='1526517105' \
--pango-markup  \
--title='test' \
--base=1000 \
--height=200 \
--width=500 \
--tabwidth '30' \
--alt-autoscale-max \
--lower-limit='0' \
COMMENT:"From 2018/05/15 20\:31\:45 To 2018/05/16 20\:31\:45\c" \
COMMENT:"  \n" \
--color BACK#F3F3F3 \
--color CANVAS#FDFDFD \
--color SHADEA#CBCBCB \
--color SHADEB#999999 \
--color FONT#000000 \
--color AXIS#2C4D43 \
--color ARROW#2C4D43 \
--color FRAME#2C4D43 \
--border 1 --font TITLE:11:'Arial' \
--font AXIS:8:'Arial' \
--font LEGEND:8:'Courier' \
--font UNIT:8:'Arial' \
--font WATERMARK:6:'Arial' \
--watermark 'Generated by Cacti®' \
DEF:a='/disk2/Weather/rrd/weather.rrd':'To':AVERAGE \
LINE1:a#000000FF:'Average temperature' 
RRDtool Says:
OK