Bash script to benchmark two domains and plot in single graph with two different colors

Question

I have achieved benchmarking of two domains and plotting them in single graph. All is left now is to change the color of plotted lines for respective domains.

plot=$plot" 'benchmark_server_data_$counter.dat' using 10 smooth sbezier with lines title '$x' lc rgb 'blue'" # This is the line where i need to replace blue with array

Like for example say, for domain1.org i want green color and for domain2.com i want blue. I think i need to create an array of colors and use for loop. I have tried but having lot of trouble.

while [ $i -lt 1 ]
do
what="http://domain1.org/,http://domain2.com/"
if [ -z "${what}" ];
then
echo "You did not specify a webserver to benchmark!"
else
OIFS=$IFS
IFS=','
arr=$what
counter=0
echo "set term png transparent truecolor" >> _temp.txt
#echo "set terminal png" >> _temp.txt
echo "set output 'out.png'" >> _temp.txt
echo "set title 'CodersHangout Webserver' tc rgb 'green' font 'Times-Roman, 20'" >> _temp.txt
echo "set size 1,1" >> _temp.txt
echo "set key left top tc rgb 'black' " >> _temp.txt
echo "set grid y " >> _temp.txt
echo "set xlabel 'Requests' font 'Times-Roman, 25' tc rgb 'green'" >> _temp.txt
echo "set ylabel 'Response time (ms)' font 'Times-Roman, 25' tc rgb 'green'" >> _temp.txt
echo "set xtics font 'Times-Roman, 20' tc rgb 'green'" >> _temp.txt
echo "set ytics font 'Times-Roman, 20' tc rgb 'green'" >> _temp.txt
echo "set object 1 rectangle from graph 0, graph 0 to graph 1, graph 1 behind fc rgbcolor 'gray' fs noborder" >> _temp.txt
plot="plot"
    for x in $arr
    do
            echo "> Running benchmark for $x"
            if [ "$counter" -gt 0 ];
            then
            plot=$plot","
            fi               
            plot=$plot" 'benchmark_server_data_$counter.dat' using 10 smooth sbezier with lines title '$x' lc rgb 'blue'" #Need to change the color of curve for different domains!
            ab -n $total -c $concurrent -k -g benchmark_server_data_$counter.dat -H 'Accept-Encoding:gzip,deflate' $x           
            counter=$(( counter + 1 ))      

    done
IFS=$OIFS
echo $plot >> _temp.txt
gnuplot _temp.txt
rm _temp.txt
rm benchmark_server_data_*
exec /opt/lampp/htdocs/serverstat/autoftp.sh
exit
fi
i=1
done

Isn't it more of a bash question cause i just need to make an array and loop through that array containing color names plot=$plot" 'benchmark_server_data_$counter.dat' using 10 smooth sbezier with lines title '$x' lc rgb 'blue'" This is the line where i need to replace blue with array name. — anshp
– anshp, Commented Jul 17, 2013 at 13:48
I took you at face value : "All is left now is to change the color of plotted lines for respective domains.". Better to highlight (in the body of your question) that info. +1 for excellent first question. Sorry I don't have time right now to help , but keep posting and Good luck. — shellter
– shellter, Commented Jul 17, 2013 at 14:10
Thank you @shellter I will keep a check. You can always come back and help. I can wait. Since, no one else seems interested in this :( — anshp
– anshp, Commented Jul 17, 2013 at 18:48

TrueY · Accepted Answer · 2013-07-19 09:19:21Z

1

You can use something like this:

#!/usr/bin/bash

arr=(http://domain1.org/ http://domain2.com/)
colour=(blue green)
for ((counter=0; counter<${#arr[@]}; ++counter));{
  echo ${arr[counter]}, \'${colour[counter]}\'
}

Output:

http://domain1.org/, 'blue'
http://domain2.com/, 'green'

I would not recommend to redefine IFS as later on it can cause hard-to-detect problems.

answered Jul 19, 2013 at 9:19

TrueY

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2 Comments

anshp Over a year ago

Thanks for replying first of all. I have not tried it but it looks fine to me. Thought it needs lot of modifications but this gave me a good idea on how to do it. Great! Thanks a lot!

TrueY Over a year ago

@Bhavyanshu: The pleasure is mine!

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