The art of Brian W. Kernighan! for detail info. please refer to http://www.amazon.com/Unix-Programming-Environment-Prentice-Hall-Software/dp/013937681X Thanks.
The most classic Uinx tutorial! work of father of Unix, Brian W. Kernighan. For remarking of this book, please refer to: http://www.amazon.com/Unix-Programming-Environment-Prentice-Hall-Software/dp/013937681X