From Mike Hammett, 5 Years ago, written in Plain Text.
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  1. RRDTool Command
  2. rrdtool graph /tmp/OKufPIEOImS68N5z  --alt-autoscale-max --rigid -E --start 1532889300 --end 1532975700 --width 1496.7 --height 314.66666666667 -c BACK#EEEEEE00 -c SHADEA#EEEEEE00 -c SHADEB#EEEEEE00 -c FONT#000000 -c CANVAS#FFFFFF00 -c GRID#a5a5a5 -c MGRID#FF9999 -c FRAME#5e5e5e -c ARROW#5e5e5e -R normal --font LEGEND:8:DejaVuSansMono --font AXIS:7:DejaVuSansMono --font-render-mode normal -u 100 -l 0 -E -b 1024  COMMENT:'                           Min   Cur    Max\n' DEF:mempoolfree1=/opt/librenms/rrd/733-nexus-3064/mempool-cemp-22.1.rrd:free:AVERAGE  DEF:mempoolused1=/opt/librenms/rrd/733-nexus-3064/mempool-cemp-22.1.rrd:used:AVERAGE  CDEF:mempooltotal1=mempoolused1,mempoolused1,mempoolfree1,+,/,100,*  AREA:mempooltotal1#CC000010 DEF:mempoolfree2=/opt/librenms/rrd/733-nexus-3064/mempool-nxos-0.rrd:free:AVERAGE  DEF:mempoolused2=/opt/librenms/rrd/733-nexus-3064/mempool-nxos-0.rrd:used:AVERAGE  CDEF:mempooltotal2=mempoolused2,mempoolused2,mempoolfree2,+,/,100,*  AREA:mempooltotal2#008C0010 LINE1:mempooltotal1#CC0000:'Module-1 48x10GE + 16x '  GPRINT:mempooltotal1:MIN:%3.0lf%% GPRINT:mempooltotal1:LAST:%3.0lf%% GPRINT:mempooltotal1:MAX:%3.0lf%%\l  LINE1:mempooltotal2#008C00:'Memory                 '  GPRINT:mempooltotal2:MIN:%3.0lf%% GPRINT:mempooltotal2:LAST:%3.0lf%% GPRINT:mempooltotal2:MAX:%3.0lf%%\l  HRULE:0#999999
  3. RRDTool Output
  4. ERROR: rrdcached: /opt/librenms/rrd/733-nexus-3064/mempool-cemp-22.1.rrd: Permission denied