Bibliography

1
The UNIX Programming Environment by B. W. Kernighan and R. Pike, Prentice Hall. Written by some of the original designers of UNIX. Despite the many changes in UNIX, this book remains a classic. The first five chapters are highly recommended as a follow up reading.

2
The AWK Programming Language by Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger, Addison Wesley.

3
The Linux Home Page. http://www.linux.org. Lots of useful information, news and documentation about Linux.