jenkins failed/pass ratio SVG

gistfile1.sh

#!/bin/bash

JSON=$(curl --silent http://127.0.0.1:8080/job/mutest/lastBuild/testReport/api/json?pretty=true)

# get fail counts
FC=$(echo $JSON| sed s#,#\\n#g|grep failCount|awk -F : '{print$2}')
# get pass counts
PC=$(echo $JSON| sed s#,#\\n#g|grep passCount|awk -F : '{print$2}')

NC=$(echo $FC "/" $PC|sed 's/ //g')

sed s,unknown,"$NC",g counts.svg > test.svg         

gistfile2.svg

<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg" width="98" height="18">
  <linearGradient id="a" x2="0" y2="100%">
    <stop offset="0" stop-color="#fff" stop-opacity=".7"/>
    <stop offset=".1" stop-color="#aaa" stop-opacity=".1"/>
    <stop offset=".9" stop-opacity=".3"/>
    <stop offset="1" stop-opacity=".5"/>
  </linearGradient>
  <rect rx="4" width="98" height="18" fill="#555"/>
  <rect rx="4" x="37" width="61" height="18" fill="#9f9f9f"/>
  <path fill="#9f9f9f" d="M37 0h4v18h-4z"/>
  <rect rx="4" width="98" height="18" fill="url(#a)"/>
  <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
    <text x="19.5" y="13" fill="#010101" fill-opacity=".3">build</text>
    <text x="19.5" y="12">ratio</text>
    <text x="66.5" y="13" fill="#010101" fill-opacity=".3">unknown</text>
    <text x="66.5" y="12">unknown</text>
  </g>
</svg>