Suppose I have a *.txt file, in which I want to alter a value in a special line. This *.txt file may look as follows:
line 1: any entry . . . . line n: [sectionname] line n+1: value . . .
Of course, the terms line 1, line 2, ... does not really appear in the *.txt, but only in the editor. My question is now, how can I change the value in line n+1? Has anyone an idea?