Following syntax is used to make a callout and populate a textarea with content from options.txt
I am copnfused with this syntax. A URL ends with a file name to be executed. And all the path before that is parent folders. In here, cgi_wrapper.cgi is a file, example_datacapture_callout.pl is also a file and options.txt is a file. How does a file contain other file ? How does this execution work ?