UNIX Shells by Example

(NOTE: Contains hands-on exercises for every topic, an appendix with detailed syntax listings, examples of many useful UNIX utilities, comparison charts, and much more.) 1. Introduction to UNIX Shells. Definition and Function. System Startup and the Login Shell. Processes and the Shell. The Environment and Inheritance. Executing Commands From Scripts. 2. The UNIX Tool Box. Regular Expressions. Combining Regular Expression Metacharacters. 3. The Grep Family. The Grep Command. Grep Examples With Regular Expressions. Grep With Pipes. Grep With Options. Egrep (Extended Grep). Fixed Grep or Fast Grep. 4. The Streamlined Editor. What Is Sed? How Does Sed Work? Addressing. Commands and Options. Error Messages and Exit Status. Sed Examples. Sed Scripting. 5. The Awk Utility: Awk As a UNIX Tool. What Is Awk? Awks Format. Formatting Output. Awk Commands From Within a File. Records and Fields. Patterns and Actions. Regular Expressions. Awk Commands in a Script File. Review. 6. The Awk Utility: Awk Programming Constructs. Comparison Expressions. Review. 7. The Awk Utility: Awk Programming. Variables. Redirection and Pipes. Pipes. Closing Files and Pipes. Review. Conditional Statements. Loops. Program Control Statements. Arrays. Awk Built-in Functions. Built-In Arithmetic Functions. User-Defined Functions (nawk). Review. Odds and Ends. Review. 8. Interactive Bourne Shell. Start-Up. Programming With the Bourne Shell. 9. The C Shell. The Interactive C Shell. Programming With the C Shell. 10. The Korn Shell. The Interactive Korn Shell. Programming With the Korn Shell. Appendix A: Useful UNIX Utilities for Shell Programmers. Appendix B: Comparison of the Three Shells. Appendix C: Steps for Quoting Correctly. Index.