Programming with GNU Software by Mike Loukides and Andy Oram
This book and CD combination is a package for programmers who are new to UNIX or who would like to make better use of the system. The tools come from the Free Software Foundation, which directs the GNU project, and from Cygnus Support, a company that provides support for free software. Contents include GNU Emacs, GCC, C and C++ libraries, GDB, RCS, GNATS, and MAKE.