I have some csv files which have varying contents. I want to simply disregard the schema and write the lines of text into one file. Which transformers or technique could I use to achieve this?
If you want to treat the CSV files as just being text files, then use a
text reader to read them (simplest to just use a single dynamic version rather than separate feature readers). The files will be read in and treated just as though they're a normal text file; schema will be ignored.
You can write them out into one single file using a single
text writer. The entire workspace should only consist of those two transformers (one dynamic text reader, one text writer).