A simple script to update Jenkins war

jenkins-update.sh

#! /bin/bash

set -e

JENKINS_BASE_PATH=/usr/share/jenkins/
CURRENT_VERSION=$1
NEW_VERSION=$2

help(){
    echo "Usage: \n\t$0 current_version new_version"
    echo "Ex: \n\t$0 1.59 1.60"
    exit 0
}

main() {
    if [ -z ${CURRENT_VERSION} -o -z ${NEW_VERSION} ]; then
        help
    fi

    sudo wget http://updates.jenkins-ci.org/download/war/${NEW_VERSION}/jenkins.war -O ${JENKINS_BASE_PATH}jenkins.war.${NEW_VERSION}

    sudo service jenkins stop

    sudo mv ${JENKINS_BASE_PATH}jenkins.war ${JENKINS_BASE_PATH}jenkins.war.${CURRENT_VERSION}
    sudo mv ${JENKINS_BASE_PATH}jenkins.war.${NEW_VERSION} ${JENKINS_BASE_PATH}jenkins.war

    sudo service jenkins start
}

main