I've used two Linux programming books, and would recommend both:
1. "Linux Application Development" by Johnson and Troan. A bit more advanced than "Linux Prog by Example," but I was able to use it effectively coming from NO linux/UNIX programming experience.
2. "Advanced Programming in the UNIX Environment" by Stevens. An excellent reference.
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I've used two Linux programming books, and would recommend both: 1. "Linux Application Development" by Johnson and Troan. A bit more advanced than "Linux Prog by Example," but I was able to use it effectively coming from NO linux/UNIX programming experience. 2. "Advanced Programming in the UNIX Environment" by Stevens. An excellent reference.