title: Executing custom shell script to build in jenkins
body: <p>I have setup a jenkins job to build my project. I have a jake.sh file in my project and the code is pulled from github. I want "npm install" command to be executed and then jake.sh to be executed once the the code is checked out.</p>
  
  <p>How can I configure this in jenkins? I have tried givin ./jake.sh and jake.sh in Build->Execute Shell section</p>