Résumé
A methodical, concept-building book that readers can use as
a programming reference, as well as a tutorial for learning
to program in Linux/UNIX
An essential reference for administrators on how to program their system.
Contents
| Introduction | 1 | |
| Assumptions About the Reader | 1 | |
| What This Book Will Give You | 2 | |
| What This Book Will Not Give You | 2 | |
| Conventions | 2 | |
| 1 | The Environment | 5 |
| What Is a Shell? | 6 | |
| What Is a Shell Script? | 7 | |
| #!/bin/ksh Explained | 7 | |
| Coming Full Circle--Back to umask | 18 | |
| #--Comments Explained | 19 | |
| The .profile Script | 20 | |
| Aliases | 22 | |
| Ksh Environment Options | 23 | |
| Variables | 24 | |
| Environment File | 30 | |
| History File and Repetition | 33 | |
| 2 | Process Control | 39 |
| How to Run a Script | 40 | |
| Jobs and Processes | 42 | |
| Signals | 52 | |
| nohup Explained | 62 | |
| Scheduling Jobs | 64 | |
| 3 | Variables | 73 |
| Case Sensitivity | 74 | |
| Valid Characters | 74 | |
| Scalar | 75 | |
| Array | 81 | |
| Read-Only | 84 | |
| Unsetting | 84 | |
| 4 | Regular Expressions | 87 |
| Regular Expressions Versus Wildcards | 88 | |
| Character Classes | 90 | |
| Pattern Matching | 92 | |
| Metacharacters | 96 | |
| Back References | 97 | |
| 5 | Quoting | 101 |
| Escape Character | 102 | |
| Aggregate Quoting Options | 104 | |
| Line Continuation | 106 | |
| Command Substitution--Two Ways | 107 | |
| Parameter Expansion | 108 | |
| Arithmetic Expansion | 113 | |
| 6 | Flow Control | 117 |
| If Test | 118 | |
| Compound If Tests | 126 | |
| Case Conditionals | 128 | |
| Looping Constructs | 129 | |
| Loop-Related Commands | 137 | |
| Backup Loop Example | 137 | |
| 7 | Data Manipulation | 143 |
| Functions | 144 | |
| Function Programming Details | 150 | |
| Math | 160 | |
| Filters | 165 | |
| Testing Files | 169 | |
| 8 | Information Passing | 179 |
| Command-Line Arguments | 180 | |
| User Input | 185 | |
| Redirection | 194 | |
| Coprocess | 197 | |
| 9 | File and Directory Manipulation | 205 |
| Paths | 206 | |
| Descriptors | 209 | |
| Special Files | 211 | |
| Links | 212 | |
| Directories | 216 | |
| Hidden Files | 218 | |
| Attributes | 219 | |
| Permissions | 222 | |
| Acceptable Filenames | 223 | |
| Accessing Files | 224 | |
| Filtering | 229 | |
| Using Temporary Files | 239 | |
| 10 | Output Control | 243 |
| Echoing Output | 244 | |
| Printf | 248 | |
| Output Redirection | 252 | |
| Multiple Output Redirection | 255 | |
| Pipes Versus Redirection | 255 | |
| Stderr Redirection | 256 | |
| Here Documents | 257 | |
| 11 | Diagnostics | 261 |
| Syntax Checking | 262 | |
| Command Interpretation Sequence | 264 | |
| Verbose Mode | 265 | |
| Execution Trace | 267 | |
| Debugging Hooks | 270 | |
| 12 | Traps | 275 |
| Defining and Using Traps | 276 | |
| Documentation Support | 281 | |
| Self-Help Scripts | 282 | |
| Bulletproofing | 282 | |
| 13 | Pulling It All Together | 289 |
| The sys_check Script | 290 | |
| First sys_check Run | 292 | |
| Second sys_check Run | 305 | |
| Numbered Version of sys_check Script | 308 | |
| A | Useful Commands | 321 |
| alias | 322 | |
| autoload | 324 | |
| bg | 325 | |
| break | 326 | |
| builtin | 327 | |
| case | 328 | |
| cat | 329 | |
| cd | 330 | |
| chmod | 331 | |
| command | 332 | |
| continue | 333 | |
| cp | 335 | |
| cut | 336 | |
| date | 337 | |
| disown | 338 | |
| echo | 339 | |
| ed | 339 | |
| eval | 340 | |
| exec | 341 | |
| exit | 342 | |
| export | 343 | |
| false | 345 | |
| fc | 346 | |
| fg | 347 | |
| find | 348 | |
| float | 350 | |
| for | 350 | |
| function | 351 | |
| getconf | 352 | |
| getopts | 353 | |
| grep | 353 | |
| hash | 354 | |
| hist | 355 | |
| history | 356 | |
| if | 357 | |
| integer | 358 | |
| jobs | 359 | |
| kill | 359 | |
| [ | 360 | |
| let | 361 | |
| ln | 362 | |
| mv | 363 | |
| newgrp | 363 | |
| nohup | 364 | |
| : | 364 | |
| paste | 365 | |
| 366 | ||
| printf | 366 | |
| pwd | 367 | |
| r | 367 | |
| read | 369 | |
| readonly | 369 | |
| return | 370 | |
| rm | 371 | |
| rmdir | 372 | |
| script | 372 | |
| select | 375 | |
| set | 375 | |
| shift | 376 | |
| sleep | 377 | |
| sort | 378 | |
| stop | 379 | |
| tail | 380 | |
| tee | 381 | |
| test | 382 | |
| time | 382 | |
| touch | 383 | |
| tr | 384 | |
| trap | 384 | |
| true | 385 | |
| tty | 386 | |
| type | 386 | |
| typeset | 387 | |
| ulimit | 389 | |
| umask | 390 | |
| unalias | 390 | |
| uniq | 391 | |
| unset | 393 | |
| until | 394 | |
| wait | 394 | |
| wc | 395 | |
| whence | 396 | |
| while | 396 | |
| who | 397 | |
| B | vi Tutorial | 401 |
| Where vi Came From | 402 | |
| Starting an Edit Session | 403 | |
| Modes of Operation | 404 | |
| Last-Line Mode | 406 | |
| Exiting from the Editor | 406 | |
| Moving the Cursor | 407 | |
| Deleting | 408 | |
| Cutting and Pasting | 409 | |
| Using Multiple Buffers | 409 | |
| Searching and Replacing | 410 | |
| Changing vi Environment Settings | 412 | |
| Edit Session Recovery | 415 | |
| Miscellaneous Commands | 416 | |
| Index | 415 |
L'auteur - David Pitts
David Pitts has been a part of the writing of more than
a half dozen books covering Linux, UNIX, and CGI
programming in Perl. He is an author, consultant, systems
administrator, programmer, instructor, and Web
developer.
Caractéristiques techniques
| PAPIER | |
| Éditeur(s) | Que |
| Auteur(s) | David Pitts, Dennis O'Brien |
| Parution | 01/12/2000 |
| Nb. de pages | 431 |
| Format | 18,6 x 23 |
| Couverture | Broché |
| Poids | 744g |
| Intérieur | Noir et Blanc |
| EAN13 | 9780789724656 |
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