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| Preface | |
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| Introduction to the Operating System Environment | |
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| Understanding Operating Systems | |
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| Defining the Unix and Linux Operating Systems | |
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| Multiuser Capability | |
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| Portability | |
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| Multitasking | |
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| Ability to Use Multiple Processors | |
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| Multiple Modes of Operation | |
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| Text Mode | |
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| Understanding Classifications of Software | |
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| System Software | |
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| Application Software | |
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| Understanding Data | |
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| Understanding User Roles | |
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| Standard Users | |
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| System Administrator | |
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| Shell Programmer | |
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| Understanding Basic Linux Commands | |
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| Logging In and Logging Out | |
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| The cal Command | |
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| The cat Command | |
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| The date Command | |
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| The echo Command | |
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| The history Command | |
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| The lpr Command | |
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| The man Command | |
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| The touch Command | |
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| The who Command | |
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| Creating Shell Scripts | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Understanding the Linux File System | |
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| Understanding the Linux Tree Hierarchy | |
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| Storage | |
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| Quick Access | |
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| The "Garden Store Tree" Analogy | |
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| Linux System Directories | |
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| Navigating the Tree Hierarchy | |
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| Changing Directory Locations | |
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| Understanding Directory Management Commands | |
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| The pwd Command | |
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| The 1s Command | |
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| The mkdir and rmdir Commands | |
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| Using Editing Commands | |
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| The vi Program | |
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| Understanding File Management Commands | |
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| The cp Command | |
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| The mv Command | |
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| The sort Command | |
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| The cut Command | |
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| The paste Command | |
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| The rm Command | |
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| The uniq Command | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Shell Basics | |
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| Understanding the Shell Login and Logout Files | |
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| The /etc/profile Script File | |
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| The */.bash_profile Script File | |
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| The */.bash_logout Script File | |
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| Learning about Shell Variables | |
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| Becoming Familiar with the Shell Environment | |
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| The File System Hierarchy Standard | |
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| Learning about Shell Builtin Commands | |
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| Learning about Shell Grammar | |
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| Understanding Command Types | |
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| Simple Commands | |
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| Pipelines | |
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| List | |
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| Compound Commands | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| The Shell Environment | |
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| Understanding Redirection | |
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| Redirecting Standard Input | |
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| Redirecting Standard Output | |
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| Redirecting Standard Error | |
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| Understanding Pattern Matching | |
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| Matching Any Character | |
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| Match a Single Character | |
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| Match Any One of Several Characters | |
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| Understanding the Use of Quoting | |
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| A Backslash (/) | |
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| A Single Quote (') | |
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| A Double Quote (") | |
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| Understanding Expansion | |
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| Tilde Expansion | |
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| Parameter (or Variable) Expansion | |
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| Command Substitution | |
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| Learning Additional Commands | |
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| The find Command | |
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| The tr Command | |
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| The tee Command | |
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| The mail Command | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Shell Script Programming Concepts | |
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| Understanding the Sequential Flow of Shell Scripting | |
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| Managing Shell Scripts | |
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| Modification of the File Access Permission of a Shell Script | |
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| Placement of Shell Scripts | |
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| Understanding the Basic Components of a Shell Script | |
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| Specifying the Command Interpreter | |
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| Comments | |
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| Variables | |
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| Understanding Parameters | |
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| Positional Parameters | |
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| Special Parameters | |
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| Creating Interactive Scripts | |
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| Understanding Debugging | |
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| Using echo | |
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| Using set | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Decision Structures | |
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| Understanding Decision-Structure Theory | |
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| Flowcharts and Decision Making | |
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| Understanding the else Decision Structure | |
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| Understanding if Statements | |
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| Using Conditional Expressions in an if Statement | |
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| Using Logical Operators | |
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| Using the elif Clause in an if Statement | |
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| Nesting if Statements | |
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| Understanding the case Statement | |
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| Pseudologic of the case Statement | |
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| Syntax for the case Statement | |
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| Pattern matching and the case Statement | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Looping Structures | |
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| Understanding Loop Theory | |
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| An Infinite Loop | |
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| Understanding the while Statement | |
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| The while Statement Syntax | |
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| Using the while Statement | |
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| The while Statement and Command Exit Status | |
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| Terminating a Loop | |
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| Nesting while Loops | |
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| Understanding the until Statement | |
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| The until Statement Syntax | |
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| Using the until Statement with Logical Operations | |
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| Understanding the for Statement | |
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| The for Statement Syntax | |
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| Nesting for Statements | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Functions and Arrays | |
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| Understanding Functions | |
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| Function Reusability | |
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| Functions Reduce Redundancy | |
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| Modularization | |
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| Understanding Function Parts | |
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| Implementing Functions | |
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| Functions Calling Functions | |
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| Avoiding Syntax Errors | |
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| Passing Values to Functions | |
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| Function Scope | |
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| Understanding the Return Status of a Function | |
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| Exporting Functions | |
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| Implementing a Function Library | |
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| Unsetting a Function | |
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| Understanding Arrays | |
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| Declaring an Array and Assigning Array Values | |
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| Declaring an Array | |
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| Assigning Values to the Array | |
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| Accessing and Clearing Values in an Array | |
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| Importance of Using Braces | |
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| Arithmetic Operations and Variable Name Substitution | |
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| Creating Records Using Arrays | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Advanced Shell Programming | |
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| Implementing a Bubble Sort | |
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| Implementing a Shell Sort | |
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| Comparing the Bubble Sort and Shell Sort | |
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| Implementing Sequential Search Techniques | |
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| Implementing Binary Search Techniques | |
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| Understanding the Here Document | |
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| Understanding File Access | |
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| Opening the File | |
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| Process the Data--Reading Records from a File | |
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| Process the Data--Writing Records to a File | |
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| Closing the File | |
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| Combining Opening, Processing, and Closing a File in a Script | |
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| Using Loops to Read in Data | |
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| Validate Data | |
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| Testing for an Empty Variable | |
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| Testing for Length | |
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| Testing for Numeric Values | |
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| Range Checks | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Incorporating Additional Techniques and Tools | |
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| Using the Arbitrary Precision Calculator to Perform Arithmetic Operations | |
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| Running bc Interactively | |
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| Running bc in a Script | |
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| Running bc in a Pipeline Command | |
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| Searching for Text Using the grep Command | |
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| Understanding the Stream Editor | |
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| Using sed Options | |
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| Understanding sed Commands | |
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| The Print Command | |
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| The Delete Command | |
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| The Substitute Command | |
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| The Append Command | |
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| The Insert Command | |
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| Creating sed Scripts | |
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| Using sed Commands in Shell Scripts | |
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| Using sed to Modify Command Output | |
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| Understanding Signals | |
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| The kill Command | |
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| The trap Command | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Advanced Techniques and Tools | |
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| Understanding the awk Pattern-scanning and Processing Language Program | |
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| Learning About awk Program Execution and Command Structure | |
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| Patterns | |
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| Actions | |
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| Getting Data into the awk Program | |
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| Passing Data at the Command Line | |
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| Prompting for User Input of Data | |
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| Using awk Scripts | |
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| Creating System Administration Utilities Using awk | |
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| Working with the dialog Command | |
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| The Menu Dialog Box | |
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| Implementing Multiple Dialog Boxes Within a Script | |
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| The File Selection, Text Box, and Message Dialog Boxes | |
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| Using the Checklist, Msg, and Calendar Dialog Boxes | |
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| Creating a Simple Application | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Script Design and Management Issues | |
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| Designing and Creating Web Page Scripts | |
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| Preserving Preformatted Output in a Web Page | |
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| Customizing Web Page Scripts with Additional HTML Tags | |
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| Adding Web Server Variables to a Web Page Script | |
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| Using Other Commands in Web Page Scripts | |
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| Understanding MySQL | |
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| Selecting Data | |
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| Inserting Data | |
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| Deleting Data | |
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| Updating Data | |
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| Setting Access to MySQL | |
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| Creating MySQL Databases and Tables | |
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| Creating Scripts that Interface with MySQL | |
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| Creating a Script to Insert Data | |
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| Creating a Script to Select Data | |
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| Creating a Script to Delete Data | |
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| Creating a Script to Update Columns in a Row | |
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| Enhancing Menu-based Scripts | |
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| Creating Menus with the select Command | |
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| Customizing with the tput Command | |
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| Understanding the Revision Control System | |
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| Adding a Script as a Launchable Application from the GUI Desktop | |
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| Understanding Additional Management Techniques | |
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| Back up and Restore | |
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| Compression and Uncompression | |
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| Creating Custom Manual Pages | |
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| Chapter Summary | |
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| Review Questions | |
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| Hands-on Projects | |
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| Case Projects | |
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| Guide to Linux Commands | |
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| Index | |