UNIX Shells by Example, w. CD-ROM

Preface. Acknowledgments. 1. Introduction to UNIX/Linux Shells. What Is UNIX? What Is Linux? A Little History. Definition and Function of a Shell. History of the Shell. System Startup and the Login Shell. Processes and the Shell. The Environment and Inheritance. Executing Commands from Scripts. 2. Shell Programming QuickStart. Taking a Peek at Shell Scripts. Sample Scripts: Comparing the Major Shells. The C and TC Shell Syntax and Constructs. The Bourne Shell Syntax and Constructs. The Korn Shell Constructs. The Bash Shell Constructs. 3. Regular Expressions and Pattern Matching. Regular Expressions. Combining Regular Expression Metacharacters. 4. The grep Family. The grep Command. grep Examples with Regular Expressions. grep with Options. grep with Pipes. egrep (Extended grep). fgrep (Fixed grep or Fast grep). Linux and GNU grep. GNU Basic grep (grep -G) with Regular Expressions. grep -E or egrep (GNU Extended grep). Fixed grep (grep -F and fgrep). Recursive grep (rgrep, grep -R). GNU grep with Options. grep with Options (UNIX and GNU). LAB 1: grep Exercise. 5. sed, the Streamlined Editor. What Is sed? Versions of sed. How Does sed Work? Regular Expressions. Addressing. Commands and Options. Error Messages and Exit Status. Metacharacters. sed Examples. sed Scripting. LAB 2: sed Exercise. 6. The awk Utility. What's awk? What's nawk? What's gawk? awk's Format. How awk Works. Formatting Output. awk Commands from Within a File. Records and Fields. Patterns and Actions. Regular Expressions. awk Commands in a Script File. Review. LAB 3: awk Exercise. Comparison Expressions. Review. LAB 4: awk Exercise. Variables. Redirection and Pipes. Pipes. Review. LAB 5: nawk Exercise. Conditional Statements. Loops. Program Control Statements. Arrays. awk Built-In Functions. Built-In Arithmetic Functions. User-Defined Functions (nawk). Review. LAB 6: nawk Exercise. Odds and Ends. LAB 7: nawk Exercise. awk Built-In Functions. 7. The Interactive Bourne Shell. Introduction. The