I am trying to do some text manipulation mathematica. After importing a `txt` as a string, how would you then output every other line into a new txt? In the command line using `awk` for instance one would do `awk 'NR % 9 != 8' in.txt` However after looking through the documentation Mathematica doesn't seem to have any current line number querying mechanism. Do you need to split the input string on every new line and then work with the list of string? Or is Mathematica not the best choice for manipulating text?