Shell Programming and Scripting

1384049064,64,83,0

/usr/bin/rrdtool graph ${spdir}/datafile_hour.png \
-w 785 -h 120 -a PNG \
--slope-mode \
--start -1h \
--title=Great \
--vertical-label=UserLoginAttempts \
--lower=0 \
DEF:pl=latencydb.rrd:pl:AVERAGE \
DEF:rtt=latencydb.rrd:rtt:AVERAGE \
CDEF:tsuccess=pl,300,* \
CDEF:tfailure=rtt,300,* \
AREA:tsuccess#00FF00:Successfulattempts \
STACK:tfailure#FF0000:Failedattempts \
COMMENT:"pkt loss1\:" \
GPRINT:tsuccess:AVERAGE:successfulattempts"%6.2lf" \
COMMENT:"pkt loss2\:" \
GPRINT:tfailure:AVERAGE:failureattempts"%6.2lf" \

while read line
do
pl=$(echo $line | awk -F"," '{print $2}')
rtt=$(echo $line | awk -F"," '{print $3}')
.... then i would run the rrdtool command here with the values fed in line by line
....
done < datafile

while IFS=, read datetime pl rtt rest
    do .... then i would run the rrdtool command here with the values fed in line by line ....
    done < datafile

<?php
  // Fetch current time
  $now = time();

  // Simulate last 180 days of login, with a step of 5 minutes
  for ($t=$now - (3600 * 24 * 180); $t<=$now; $t+=300) {
    $success = rand(0, 10);
    $failure = rand(0, 5);
    $ret = rrd_update("login.rrd", "$t:$success:$failure");
  }

?>

#!/bin/bash

# -R  --> Range that is x axis 1 to 10 y axis -1 to 1
# -JX --> Projection you can change according to your need
# -B  --> Annotation spacing is 1 in x axis and 0.1 in y axis
# -X  --> X position currenty +5 
# -W4.5,blue --> 4.5 is line thickness and blue is line color
# test.ps -- > output file

# Generate sample file 
awk 'BEGIN{for(i=1;i<=10;i++)print i,sin(i)}' >xy.txt

# Plot
psxy xy.txt -R1/10/-1/1 -JX20/15 -Ba1:"X axis":/a0.1:"Y axis": -X5 -W4.5,blue >test.ps

# You can also use pipe like this
# awk 'BEGIN{for(i=1;i<=10;i++)print i,sin(i)}' | psxy -R1/10/-1/1 -JX20/15 -Ba1:"X axis":/a0.1:"Y axis": -X5 -W4.5,blue >test.ps

# Program to open output ps file you can use gv(Ghost Viewer) or okular also
evince test.ps