for migration jenkins jobs

jenkins-jobs-backup.sh

#!/bin/bash

JENKINS_URL=$1
VIEW=$2

if [ -z "$1" ]
  then
    echo "Need to JENKINS URL for first argument"
    exit 1
fi

if [ -z "$2" ]
  then
    echo "No argument supplied, will use default View name is 'all'"
    VIEW=all
fi

mkdir -p ./jobs

java -jar jenkins-cli.jar -s $JENKINS_URL list-jobs "$VIEW" |
while read line 
do  
  echo "$line"
  PWD=$(pwd)
  bash -c "java -jar jenkins-cli.jar -s $JENKINS_URL get-job "$line" > "$PWD/jobs/$line".xml" &
done  

https://staxmanade.com/2015/01/how-to-migrate-a-jenkins-job-to-new-jenkins-server/