Learning the UNIX Operating System, 4th Edition
by Jerry Peek, Grace Todino, and John Strang


Here's a key to the markup:

        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification


Here are the changes made in the 9/99 reprint:


{45} In Table 3-2, the descriptions of  "r" and "R" have been interchanged.