how to write the result of the command System.out.println (ListingId) to a file
No way.
The output from System.out.println(xxx)
in a Test Case of Katalon Studio goes into the “Console” view of Katalon GUI. You can not redirect it (pipe it) to a file.
is there a commadn that can be implemented?
No, you can not save the output from System.out
into file. Why? See this post
Of course you can write a string into an arbitrary file directly by your Groovy script. If you want to see an example of java.io.PrintStream#println()
usage, for example I found the following:
You need to manage file (open it, println into it, close it) for yourself.