I have just started reading real analysis. The topics include sequences, series, continuity, differentiability, integration, series of functions , calculus in higher dimensions etc.  I am in need of a text and a reference book.  Can someone please tell me about it?  The text should not be very broad as I need something to finish before my exam.But the reference should be broad, with full of exercise and examples. Hint to exercise will help me a lot.  Waiting for your response.
Does anyone have a recommendation for a book to use for the self study of real analysis? Several years ago when I completed about half a semester of Real Analysis I, the instructor used "Introduction to Analysis" by Gaughan.   While it's a good book, I'm not sure it's suited for self study by itself.  I know it's a rigorous subject, but I'd like to try and find something that "dumbs down" the material a bit, then between the two books I might be able to make some headway.
I have a directory that contains the following:  x.pdf y.zip z.mp3 a.pdf   I want to delete all files apart from x.pdf and a.pdf. How do I do this from the terminal? There are no subdirectories so no need for any recursion.