| |
| |
| Preface | |
| |
| |
| Acknowledgments | |
| |
| |
| |
| 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 | |
| |
| |
| |
| 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 | |
| |
| |
| |
| Regular Expressions and Pattern Matching | |
| |
| |
| Regular Expressions | |
| |
| |
| Combining Regular Expression Metacharacters | |
| |
| |
| 4 | |
| |
| |
| 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) | |
| |
| |
| grep with Options | |
| |
| |
| grep with Options (UNIX and GNU) | |
| |
| |
| |
| grep Exercise | |
| |
| |
| 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 | |
| |
| |
| |
| sed Exercise | |
| |
| |
| |
| 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 | |
| |
| |
| |
| awk Exercise | |
| |
| |
| Comparison Expressions | |
| |
| |
| Review | |
| |
| |
| |
| awk Exercise | |
| |
| |
| Variables | |
| |
| |
| Redirection and Pipes | |
| |
| |
| Pipes | |
| |
| |
| Review | |
| |
| |
| |
| nawk Exercise | |
| |
| |
| Conditional Statements | |
| |
| |
| Loops | |
| |
| |
| Program Control Statements | |
| |
| |
| Arrays | |
| |
| |
| awk Built-In Functions | |
| |
| |
| Built-In Arithmetic Functions | |
| |
| |
| User-Defined Functions (nawk) | |
| |
| |
| Review | |
| |
| |
| |
| nawk Exercise | |
| |
| |
| Odds and Ends | |
| |
| |
| |
| nawk Exercise | |
| |
| |
| awk Built-In Functions | |
| |
| |
| |
| The Interactive Bourne Shell | |
| |
| |
| Introduction | |
| |
| |
| The Environment | |
| |
| |
| The Command Line | |
| |
| |
| Shell Metacharacters (Wildcards) | |
| |
| |
| Filename Substitution | |
| |
| |
| Variables | |
| |
| |
| Quoting | |
| |
| |
| Command Substitution | |
| |
| |
| An Introduction to Functions | |
| |
| |
| Standard I/O and Redirection | |
| |
| |
| Pipes | |
| |
| |
| The here document and Input | |
| |
| |
| |
| Programming the Bourne Shell | |
| |
| |
| Introduction | |
| |
| |
| Reading User Input | |
| |
| |
| Arithmetic | |
| |
| |
| Positional Parameters and Command-Line Arguments | |
| |
| |
| Conditional Constructs and Flow Control | |
| |
| |
| Looping Commands | |
| |
| |
| Functions | |
| |
| |
| Trapping Signals | |
| |
| |
| The Command Line | |
| |
| |
| Shell Invocation Options | |
| |
| |
| |
| Bourne Shell--Getting Started | |
| |
| |
| Metacharacters | |
| |
| |
| |
| Redirection | |
| |
| |
| |
| First Script | |
| |
| |
| |
| Command-Line Arguments | |
| |
| |
| |
| Getting User Input | |
| |
| |
| |
| Conditional Statements | |
| |
| |
| |
| Conditionals and File Testing | |
| |
| |
| |
| The case Statement | |
| |
| |
| |
| Loops | |
| |
| |
| |
| Functions | |
| |
| |
| |
| The Interactive C and TC Shells | |
| |
| |
| Introduction | |
| |
| |
| The Environment | |
| |
| |
| The C/TC Shell | |