In just 21 days, users can go to beginner or intermediate to the capability level of performing more advanced system administrator functions. The book covers the workshop configuration for all major flavors of UNIX and fills the void other books leave by being too narrowly focused.

Learn how to develop powerful and robust shell scripts in order to get the most out of your Unix/Linux system.

Sams Teach Yourself SQL in 21 Days, Fourth Editionprovides a sold foundation in understanding the fundamentals of SQL (Structured Query Language). SQL is the query language used by relational databases such a Oracle, Microsoft Access, and Microsoft SQL Server. The new edition covers object-oriented programming with SQL, ODBC, JDBC, embedded SQL, accessing remote databases, and constructs. All new examples based on an open source database such as MySQL enhance this new edition by making the examples readily useable for readers.

In the wake of the highly successful Sams Teach Yourself Unix in 24 Hours, this book focuses on the additional Unix commands that an advanced user or beginning system administrator needs to know in order to administer and maintain a Unix system. The book includes coverage of the key Unix variations: Red Hat Linux, Solaris, HP-UX, and Apple's Mac OS X environment. The book will not be a comprehensive solution to all problems facing new system administrators, but instead is a tutorial introduction to the process of learning about and maintaining a running Unix server.

Ruby is a high-level, fully object-oriented programming (OOP) language. It is very powerful and relatively easy to learn, read, and maintain. Sams Teach Yourself Ruby in 21 Days provides the best introduction to this language and addresses one of the key constraints it faces: "The paucity of quality English-language documentation is one of the few things holding Ruby back from widespread adoption," according to Dr. Curtis Clifton of Iowa State University¿s Department of Graduate Computer Science.

Ready-to-use building blocks for integrated circuit design. Why start coding from scratch when you can work from this library of pre-tested routines, created by an HDL expert? There are plenty of introductory texts to describe the basics of Verilog, but "Verilog Designer's Library" is the only book that offers real, reusable routines that you can put to work right away. "Verilog Designer's Library" organizes Verilog routines according to functionality, making it easy to locate the material you need. Each function is described by a behavioral model to use for simulation, followed by the RTL code you'll use to synthesize the gate-level implementation. Extensive test code is included for each function, to assist you with your own verification efforts. Coverage includes: Essential Verilog coding techniques Basic building blocks of successful routines State machines and memories Practical debugging guidelines Although "Verilog Designer's Library" assumes a basic familiarity with Verilog structure and syntax, it does not require a background in programming. Beginners can work through the book in sequence to develop their skills, while experienced Verilog users can go directly to the routines they need. Hardware designers, systems analysts, VARs, OEMs, software developers, and system integrators will find it an ideal sourcebook on all aspects of Verilog development.

Sams Teach Yourself Cisco Routers in 21 Days is an in-depth, straightforward tutorial. It covers configuring a router from the ground up, alerts the reader to the most common problems, and offers tested solutions when they are applicable. Readers will learn how to: install the IOS; perform the initial configuration; configure the router for protocols such as TCP/IP, IPX, RIP, and IGRP, avoid common pitfalls working with routers.