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| Preface | |
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| UNIX for Beginners | |
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| Getting started | |
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| Day-to-day use: files and common commands | |
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| More about files: directories | |
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| The shell | |
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| The rest of the UNIX system | |
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| The File System | |
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| The basics of files | |
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| What's in a file? | |
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| Directories and filenames | |
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| Permissions | |
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| Inodes | |
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| The directory hierarchy | |
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| Devices | |
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| Using the Shell | |
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| Command line structure | |
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| Metacharacters | |
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| Creating new commands | |
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| Command arguments and parameters | |
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| Program output as arguments | |
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| Shell variables | |
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| More on I/O redirection | |
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| Looping in shell programs | |
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| bundle: putting it all together | |
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| Why a programmable shell? | |
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| Filters | |
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| The grep family | |
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| Other filters | |
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| The stream editor sed | |
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| The awk pattern scanning and processing language | |
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| Good files and good filters | |
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| Shell Programming | |
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| Customizing the cal command | |
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| Which command is which? | |
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| While and until loops: watching for things | |
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| Traps: catching interrupts | |
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| Replacing a file: overwrite | |
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| Zap: killing proceses by name | |
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| The pick command: blanks vs. arguments | |
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| The news command: community service messages | |
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| Get and put: tracking file changes | |
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| A look back | |
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| Programming with Standard I/O | |
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| Standard input and output: vis | |
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| Program arguments: vis version 2 | |
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| File access: vis version 3 | |
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| A screen-at-a-time printer: p | |
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| An example: pick | |
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| On bugs and debugging | |
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| An example: zap | |
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| An interactive file comparison program: idiff | |
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| Accessing the environment | |
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| UNIX System Calls | |
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| Low-level I/O | |
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| File system: directories | |
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| File system: inodes | |
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| Processes | |
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| Signals and interrupts | |
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| Program Development | |
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| Stage 1: A four-function calculator | |
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| Stage 2: Variables and error recovery | |
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| Stage 3: Arbitrary variable names; built-in functions | |
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| Stage 4: Compilation into a machine | |
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| Stage 5: Control flow and relational operators | |
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| Stage 6: Functions and procedures; input/output | |
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| Performance evaluation | |
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| A look back | |
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| Document Preparation | |
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| The ms macro package | |
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| The troff level | |
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| The tbl and eqn preprocessors | |
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| The manual page | |
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| Other document preparation tools | |
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| Epilog | |
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| Editor Summary | |
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| hoc Manual | |
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| hoc Listing | |
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| Index | |