Jenkins Pipeline - String parameter creates a new line even after trim()

Question

I am trying to use string parameter but it is always creating new line even when I am using trim() I followed solution from Jenkins Pipeline - inserting variable in shell creates a new line

Pipeline Code

    parameters {
        string(defaultValue: '', description: 'url', name: 'Url')
    }
    environment {
        KEY = credentials('KEY')
        USERNAME = credentials('USERNAME')
        PASSWORD = credentials('PASSWORD')
        //Parameters
        URL = "${params.Url.trim()}"
    }
    stage('Run script to upload image') {
            steps {
                script {
                        sh '''
                            if [ -n "${URL}" ]; then
                                ./create_and_upload_image.sh --url ${URL} --uname ${USERNAME} --password ${PASSWORD} --key ${KEY}"
                            fi
                          //More steps
                        '''
                }
             }
       }                     

Output

+ [ -n 
https://access.cdn.com/content/origin/files/sha256/4e/4e5c7cccb5ea7622640c97725912222458af743cf994e48f10239734c6a2ee65/image.qcow2 ]
+ ./create_and_upload_image.sh --url 
https://access.cdn.com/content/origin/files/sha256/4e/4e5c7cccb5ea7622640c97725912222458af743cf994e48f10239734c6a2ee65/image.qcow2 --uname **** --password **** --key ****
bash: --uname: command not found

What should I do to avoid new line

Answer 1

等待大神答复