The new edition of this classic O’Reilly reference provides clear, detailed explanations of every feature in the C language and runtime library, including multithreading, type-generic macros, and library functions that are new in the 2011 C standard (C11). If you want to understand the effects of an unfamiliar function, and how the standard library requires it to behave, you’ll find it here, along with a typical example. Ideal for experienced C and C++ programmers, this book also includes popular tools in the GNU software collection. You’ll learn how to build C programs with GNU Make, compile executable programs from C source code, and test and debug your programs with the GNU debugger. In three sections, this authoritative book
Look for a cow on the cover of this book. I bought this book for a C in UNIX class. The C part is great.
There is hardly a page that does not have an example or enlightening diagram. However, the only reference to applying this to UNIX is in the back where it "Practically" says that there are different versions of UNIX. It never really claimed to be a UNIX book on C. The section on unbuffered I/O has a little more on the UNIX handling of files. Overall, until something better comes along, I am still using this book.