How do I make Jenkins 2.0 execute a sh command in the same directory as the checkout?

Question

Here\'s my Jenkins 2.x pipeline:

node (\'master\'){
    stage \'Checkout\'
    checkout scm
    stage \"Build Pex\"
    sh(\'build.sh\')
}

When

Answer 1

I compiled all the answers above and for me it worked like this:

stage('Run Script'){
        steps {
                script {
                        sh('cd relativePathToFolder && chmod +x superscript.sh && ./superscript.sh parameter1 paraeter2')
                    }
                }
}

Thanks to @Rafael Manzoni @Keith Mitchell and @Jayan