1. What to do if things go wrong

After all of the DataLad-101 lectures and tutorials so far, you really begin to appreciate the pre-crafted examples and tasks the handbook provides. “Nothing really goes wrong, and if so, it’s intended”, you acknowledge. “But how does this prepare me for life after the course? I’ve seen a lot of different errors and know many caveats and principles already, but I certainly will mess something up at one point. How can I get help, or use the history of the dataset to undo what I screwed up? Also, I’m not sure whether I know what I can and can not do with the files inside of my dataset… What if I would like to remove one, for example?”

Therefore, this upcoming chapter is a series of tutorials about common file system operations, interactions with the history of datasets, and how to get help after errors.