Replace and insert

Try something like the snippet below. If you use ''' (three single quotes) instead of " (one double quote) to denote a string, it'll take any/all special formatting of the string. Then, when you use replace, you have to set something equal to the result of the .replace() function.

def a = '''-------------- Start String -------

                                             Actual string

 

                        -----End String --------'''

a = a.replace("Start String", "");

log.info(a);