This manual describes how to compare and merge files using GNU diff and patch. Comparing and merging files is a common activity for software developers. These programs make it easy to find and apply changes. GNU diff is part of the GNU diffutils package, a complete set of programs for handling differences between groups of files....

This updated edition for Bison version 1.875 has an expanded \'Concepts\' and \'Grammar Files\' sections, and a greatly expanded \'Debugging Your Parser\' section. There is also a new FAQ section added to the appendix. Some obsolete material was removed as well....

The intersection of ethics, law, business and computer software is the subject of these essays and speeches by MacArthur Foundation Grant winner, Richard M. Stallman....

The GNU Debugger allows you to see what is going on \"inside\" a program while it executes - or what a program was doing at the moment it crashed. GDB supports C, C++, Java, Fortran and Assembly among other languages; it is also designed to work closely with the GNU Compiler Collection (GCC)....