Bash Script - Get Jenkins Job Status over API

is_job_done.sh

#!/bin/bash

BUILD_NUMBER="";
STATUS="None";
COMPLETE="false";

function isJenkinsJobComplete() {
    API_RESPONSE=`curl ${1}`;
    STATUS=`echo "${API_RESPONSE}" | python -c 'import json,sys;obj=json.load(sys.stdin);print obj["result"]'`;
    BUILD_NUMBER=`echo "${API_RESPONSE}" | python -c 'import json,sys;obj=json.load(sys.stdin);print obj["id"]'`;

    if [ ${STATUS} != "None" ]; then
        COMPLETE='true';
    else
        COMPLETE='false';
    fi
}

isJenkinsJobComplete "https://myhost/myjob/lastBuild/api/json"
echo "Build #${BUILD_NUMBER} is complete: ${COMPLETE}, status is: ${STATUS}";