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| Preface | |
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| List of Tables | |
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| Getting Started | |
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| The Operating System | |
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| The UNIX Operating System | |
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| Knowing Your Machine | |
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| Knowing Your Keyboard | |
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| The System Administrator | |
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| Logging In and Out | |
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| Trying Out Some Commands | |
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| Two Important Observations | |
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| When Things Go Wrong | |
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| Yet Another Session: Working with Files and Directories | |
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| How It All Clicked | |
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| Linux and GNU | |
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| Inside UNIX | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Understanding the UNIX Command | |
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| General Features of a Command | |
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| The PATH: Locating Commands | |
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| Internal and External Commands | |
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| Command Structure | |
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| Flexibility of Command Usage | |
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| man: On-Line Help | |
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| The man Documentation | |
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| info: The Texinfo Documentation | |
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| whatis and apropos: Which Command Will Do the Job? | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| General-Purpose Utilities | |
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| passwd: Change Your Password | |
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| who and w: Know the Users | |
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| tty: Know Your Terminal | |
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| lock: Lock Your Terminal | |
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| stty: Set Terminal Characteristics | |
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| script: Record Your Session | |
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| clear and tput: Clear Your Screen | |
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| uname: Know Your Machine's Name | |
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| date: Display the System Date | |
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| cal: The Calendar | |
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| calendar: A Useful Reminder Mechanism | |
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| bc: The Calculator | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| The vi/vim Editor | |
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| vi Preliminaries | |
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| Quitting vi--The Last Line Mode | |
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| Inserting and Replacing Text | |
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| Saving Text (:w) | |
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| Exit to the UNIX Shell | |
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| The Repeat Factor | |
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| The Command Mode | |
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| Navigation | |
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| Operators | |
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| Deleting, Moving and Yanking Text | |
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| Changing Text (c and *) | |
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| The Dot: Repeating the Last Command | |
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| Undoing Last Editing Instructions (u and U) | |
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| String Search | |
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| Searching with Regular Expressions | |
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| Search and Replace (:s) | |
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| Handling Multiple Files | |
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| Marking Text | |
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| Filtering Text--The ! Operator | |
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| Named Buffers: Copying and Moving Multiple Text Sections | |
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| Recovering Multiple Deletions | |
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| Abbreviating Text (:ab) | |
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| Customizing the Keyboard (:map) | |
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| Customizing the Environment (:set) | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| The GNU emacs Editor | |
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| emacs Preliminaries | |
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| Quitting emacs | |
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| Inserting and Replacing Text | |
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| Saving Text | |
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| The Digit Argument | |
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| Navigation | |
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| Working with Regions | |
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| Deleting, Moving and Copying Text | |
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| Changing Case of Text | |
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| Command Completion | |
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| Undoing and Redoing Editing | |
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| String Search | |
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| Searching with Regular Expressions | |
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| Search and Replace | |
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| Using Multiple Files, Windows and Buffers | |
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| Escape to Shell | |
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| Using the Help Facility ([Ctrl-h]) | |
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| Marking Text | |
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| Filtering Text | |
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| Storing Multiple Text Sections | |
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| Recovering Multiple Deletions ([Alt-y]) | |
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| Abbreviating Text (abbrev-mode) | |
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| Customizing the Keyboard | |
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| Using Macros | |
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| Customizing the Editor Environment | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| The File System | |
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| The File | |
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| What's in a (File)name? | |
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| The Parent-Child Relationship | |
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| The UNIX File System | |
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| pwd: Knowing Your Current Directory | |
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| Absolute Pathnames | |
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| cd: Changing Directories | |
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| Relative Pathnames (. and ..) | |
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| mkdir: Making Directories | |
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| rmdir: Removing Directories | |
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| cp: Copying Files | |
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| rm: Deleting Files | |
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| mv: Renaming Files | |
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| cat: Displaying and Creating Files | |
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| file: Know the File Types | |
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| lp and cancel: Printing a File | |
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| df: Finding Out the Free Disk Space | |
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| du: Finding Out Your Own Consumption | |
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| compress, gzip and zip: Compress Your Files | |
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| Conclusion | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| File Attributes | |
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| ls: Listing Files | |
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| ls -l: Listing File Attributes | |
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| Listing Directory Attributes (ls -d) | |
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| File Permissions | |
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| chmod: Changing File Permissions | |
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| Directory Permissions | |
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| umask: Default File Permissions | |
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| File Ownership | |
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| chown and chgrp: Changing File Ownership | |
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| File Modification and Access Times | |
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| touch: Changing the Time Stamps | |
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| File Systems and Inodes | |
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| ln: Links | |
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| Symbolic Links | |
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| find: Locating Files | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| The Shell | |
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| The Shell as Command Processor | |
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| Pattern Matching--The Wild Cards | |
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| Escaping--The Backslash (\) | |
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| Quoting | |
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| Escaping and Quoting in echo | |
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| Redirection | |
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| /dev/null and /dev/tty: Two Special Files | |
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| Pipes | |
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| tee: Splitting a Stream | |
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| Command Substitution | |
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| Shell Variables | |
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| Shell Scripts | |
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| The Shell's Treatment of the Command Line | |
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| The Other Shells | |
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| More Wild Cards in the Korn Shell and bash | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| Simple Filters | |
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| more: Paging Output | |
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| wc: Line, Word and Character Counting | |
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| od: Displaying Data in Octal | |
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| pr: Paginating Files | |
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| cmp: Comparing Two Files | |
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| diff: Converting One File to Another | |
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| comm: What Is Common? | |
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| head: Displaying the Beginning of a File | |
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| tail: Displaying the End of a File | |
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| cut: Slitting a File Vertically | |
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| paste: Pasting Files | |
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| sort: Ordering a File | |
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| tr: Translating Characters | |
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| uniq: Locate Repeated and Nonrepeated Lines | |
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| nl: Line Numbering | |
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| dos2unix and unix2dos: DOS and UNIX Files | |
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| spell: Check Your Spellings | |
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| Applying the Filters | |
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| Summary | |
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| Summing Up Linux | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| The Process | |
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| Understanding the Process | |
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| How a Process Is Created | |
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| The Login Shell: The First User Process | |
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| The init Process | |
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| Internal and External Commands | |
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| ps: Process Status | |
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| Running Jobs in Background | |
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| nice: Job Execution with Low Priority | |
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| Signals | |
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| kill: Premature Termination of a Process | |
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| Job Control | |
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| at and batch: Execute Later | |
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| cron: Running Jobs Periodically | |
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| time: Timing Processes | |
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| Summary | |
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| Summing Up Linux | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| TCP/IP Networking Tools | |
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| TCP/IP Basics | |
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| talk: Real-Time Conversation | |
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| mesg: Your Willingness to Talk | |
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| finger: Details of Users | |
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| telnet: Remote Login | |
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| rlogin: Remote Login without Password | |
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| ftp: File Transfer Protocol | |
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| rcp: Remote File Copying | |
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| rsh: Remote Command Execution | |
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| Enforcing Security for the Berkeley r-Utilities | |
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| Prelude to the Internet | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| The X Window System | |
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| Why Use X? | |
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| The Graphical User Interface in X | |
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| Starting and Stopping X | |
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| The X Architecture | |
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| Running X Programs Remotely | |
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| X Techniques and Components | |
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| The Window Manager--A Special Client | |
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| CDE: The Common Desktop Environment | |
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| xterm: The Main Client | |
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| Command Line Options | |
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| Copy and Paste | |
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| Standard X Clients | |
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| .xinitrc: The Startup File | |
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| X Resources | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Electronic Mail | |
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| Email Basics | |
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| mail: The Good Old Mailer | |
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| elm: A Screen-Oriented Mail Handler | |
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| pine: Yet Another Mail Program | |
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| .signature and .forward: Two Important Files | |
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| How Mail Works | |
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| Netscape Messenger: The Most Powerful Mailer | |
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| vacation: Going on Leave | |
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| MIME: Handling Binary Files | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| The Internet | |
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| The Internet Top-Level Domains | |
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| The Services on the Internet | |
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| Mailing Lists | |
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| Newsgroups | |
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| Using tin to Read Newsgroups | |
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| Using Netscape Messenger for Net News | |
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| irc: Internet Relay Chat | |
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| The World Wide Web | |
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| Using the Web Browser: Netscape Navigator | |
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| Hypertext, HTTP and the URL | |
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| HTML: The Language of the Web | |
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| Saving Web Pages and Graphics | |
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| Enhancing Browser Performance | |
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| The Bubble that Didn't Burst | |
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| MIME Technology on the Web | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| Filters Using Regular Expressions--grep and sed | |
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| The Sample Database | |
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| grep: Searching for a Pattern | |
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| grep Options | |
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| Regular Expressions--Round One | |
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| egrep and fgrep: The Other Members | |
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| Regular Expressions--Round Two | |
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| sed: The Stream Editor | |
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| Line Addressing | |
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| Context Addressing | |
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| Editing Text | |
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| Substitution | |
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| Regular Expressions--Round Three | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Programming with awk | |
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| awk Preliminaries | |
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| Splitting a Line into Fields | |
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| printf: Formatting Output | |
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| The Comparison Operators | |
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| Number Processing | |
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| Variables | |
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| Reading the Program from a File (-f) | |
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| The BEGIN and END Sections | |
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| Positional Parameters | |
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| getline: Making awk Interactive | |
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| Built-In Variables | |
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| Arrays | |
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| Functions | |
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| Control Flow--The if Statement | |
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| Looping: for and while | |
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| Conclusion | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Customizing the Environment | |
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| Which Shell? | |
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| Environment Variables | |
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| Significance of the Environment (System) Variables | |
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| Aliases | |
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| Command History | |
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| In-line Command Editing in Korn Shell and bash | |
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| Filename Completion | |
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| Miscellaneous Features | |
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| The Initialization Scripts | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Shell Programming | |
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| Shell Variables | |
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| Shell Scripts | |
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| read: Making Scripts Interactive | |
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| Positional Parameters | |
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| Exit Status of a Command | |
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| The Logical Operators andand and --Conditional Execution | |
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| exit: Script Termination | |
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| The if Conditional | |
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| test and []: Companions of if | |
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| The case Conditional | |
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| expr: Computation and String Handling | |
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| $0: Calling a Script with Different Names | |
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| sleep and wait | |
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| while and until: Looping | |
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| Two Sample Scripts | |
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| for: Looping with a List | |
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| cpback2.sh: The Final Script | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Advanced Shell Programming Including Korn and bash | |
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| set: Assigning Values to Positional Parameters | |
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| The Here Document ([[) | |
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| let: Computation--A Second Look (ksh and bash) | |
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| Redirection--A Second Look | |
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| user_details.sh: A Script to List User Details | |
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| Problems with Sub-Shells | |
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| Arrays (ksh and bash) | |
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| String Handling (ksh and bash) | |
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| Conditional Parameter Substitution | |
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| Shell Functions | |
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| Devising Shell Functions | |
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| eval: Evaluating Twice | |
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| createuser.sh: Using eval to Create a User | |
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| The exec Statement | |
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| set -x: Debugging Shell Scripts | |
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| trap: Interrupting a Program | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Perl--The Master Manipulator | |
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| perl Preliminaries | |
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| chop(): Removing the Last Character | |
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| Variables and Operators | |
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| The String Handling Functions | |
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| Specifying Filenames in Command Line | |
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| $_: The Default Variable | |
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| Current Line Number ($.) and the Range Operator (..) | |
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| Lists and Arrays | |
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| ARGV []: Command Line Arguments | |
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| foreach: Looping Through a List | |
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| split(): Splitting into a List | |
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| join(): Joining a List | |
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| Modifying Array Contents | |
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| Associative Arrays | |
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| Regular Expressions and Substitution | |
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| File Handling | |
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| File Tests | |
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| Subroutines | |
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| Conclusion | |
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| CGI Programming with perl--An Overview | |
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| Handling Form Data | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| System Administration I--The File System Revisited | |
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| The Device | |
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| Significance of Device Names | |
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| The Hard Disk | |
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| Partitions and File Systems | |
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| File System Components | |
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| The Directory | |
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| The Standard File Systems | |
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| File System Types | |
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| Creating Partitions and File Systems | |
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| File System Mounting and Unmounting | |
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| fsck: File System Checking | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| System Administration II--The General Duties | |
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| root: The System Administrator's Login | |
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| The Administrator's Privileges | |
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| Maintaining User Accounts | |
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| Maintaining Security | |
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| Booting | |
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| Shutdown | |
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| Handling Floppy Diskettes | |
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| cpio: Copy Input-Output | |
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| tar: The "Tape" Archive Program | |
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| Managing the Disk Space | |
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| Password Administration with passwd | |
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| The rc Scripts Used by init | |
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| Terminal Management | |
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| Printing Preliminaries | |
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| Administering an SVR4 Printer | |
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| Summary | |
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| Going Further | |
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| Self-Test | |
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| Exercises | |
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| Going Further | |
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| Key Terms | |
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| TCP/IP Network Administration | |
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| TCP/IP and the Addressing System | |
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| Setting Up the Network Interface Card | |
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| ifconfig: Configuring the Network Interface | |
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| ping: Checking the Network | |
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| Routing | |
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| netstat: Displaying the Network Parameters | |
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| inetd: The Internet Daemon | |
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| pppd: The Point-to-Point Protocol (PPP) | |
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| Using PPP to Connect to the Internet | |
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| PAP and CHAP Authentication | |
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| The Network File System | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| Going Further--Building the Internet Server | |
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| The Network at Rational Planets | |
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| The Domain Name Service (DNS) | |
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| Setting Up DNS--Configuring the Master Server | |
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| The Secondary and Caching Servers | |
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| Configuring the Resolver | |
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| ndc and nslookup: Testing the Configuration | |
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| The Mail Service | |
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| sendmail.cf: The Configuration File | |
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| Aliases | |
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| Setting Up the Mail Server for planets.com | |
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| POP and IMAP: The Protocols for Offline Use | |
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| Setting Up the Mail System at Velvet | |
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| The Web Service | |
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| httpd.conf: The Configuration File | |
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| Virtual Hosting | |
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| Directory Access Control | |
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| Summary | |
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| Self-Test | |
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| Exercises | |
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| Key Terms | |
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| The C Shell--Programming Constructs | |
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| vi/vim and emacs Command Reference | |
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| The Regular Expression Superset | |
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| The Shell Reference | |
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| The HOWTO | |
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| The ASCII Character Set | |
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| Glossary | |
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| Solutions to Self-Test Questions | |
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| Bibliography | |
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| vi Index | |
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| emacs Index | |
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| Commands and Key Terms | |
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| C Shell | |
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| Korn Shell | |
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| bash | |
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| Comprehensive Index | |