Is there any advanced script o execute the below stage . where i have used old traditional way of pre building steps modifying scripts based on the enviroment chosen

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stage(‘Re-writing the paths in customHTML.js based on the Environment we choosed’) {
steps {
script {
catchError{
// Deleting the old customHTML.js file in the cloned project
if (params.ENVIRONMENT == ‘Stability’) {

                sh '''
                sed -i -e 's#var serverPath="http://weconnect.wenzins.live:9090/fitkitapi";#var serverPath="http://stability.wenzins.live:9090/fitkitapi";#' \
                       -e 's#var doctorWebPath="http://weconnect.wenzins.live:8080/fDoctorWeb";#var doctorWebPath="http://stability.wenzins.live:8080/fDoctorWeb";#' \
                       -e 's#var imagePath="http://weconnect.wenzins.live:8080/image/phc";#var imagePath="http://stability.wenzins.live:8080/image/phc";##' \
                       -e 's#var urlPath = "http://weconnect.wenzins.live:8080/image/phc";#var urlPath = "http://stability.wenzins.live:8080/image/phc";#' /opt/jenkins/workspace/fDoctorWeb/src/main/webapp/resources/js/customHTML.js
                '''
                }
                // Copying the replacement files
                else if(params.ENRIVONMENT == 'Weconnect') {
                
                sh '''
                sed -i -e 's#var serverPath="http://weconnect.wenzins.live:9090/fitkitapi";#var serverPath="http://weconnect.wenzins.live:9090/fitkitapi";#' \
                       -e 's#var doctorWebPath="http://weconnect.wenzins.live:8080/fDoctorWeb";#var doctorWebPath="http://weconnect.wenzins.live:8080/fDoctorWeb";#' \
                       -e 's#var imagePath="http://weconnect.wenzins.live:8080/image/phc";#var imagePath="http://weconnect.wenzins.live:8080/image/phc";##' \
                       -e 's#var urlPath = "http://weconnect.wenzins.live:8080/image/phc";#var urlPath = "http://weconnect.wenzins.live:8080/image/phc";#' /opt/jenkins/workspace/fDoctorWeb/src/main/webapp/resources/js/customHTML.js
                '''
                }
                else {
                    echo "Check Config"
                }
                }
            }
        }
    }