Download E-books From Bash to Z Shell: Conquering the Command Line PDF

By Oliver Kiddle

A few components are lined in different books, yet this one is going into a few little-seen facet streets and alleyways to teach you the shortcuts to extra effective use of the shell. ...The fabric here's precious: you are not going to get it from the handbook pages! I strongly suggest it.
- Ernest J.

This is a unconditionally neat proposal for a book... the command line will get addictive quick.
- invoice Ryan, Bill's condominium O Insomnia

This finished, hands-on consultant specializes in of the most well-liked and feature-rich shells, bash and zsh. From Bash to Z Shell: Conquering the Command Line is a booklet for all ability degrees. newbies will obtain an advent to the gains of shells and gear clients gets to discover some great benefits of zsh--one of the main strong, flexible shells ever written. Intermediate clients will discover tricks, recipes, and concepts to augment their ability units.

The publication covers shell programming, yet is exclusive in its thorough assurance of utilizing shells interactively--a strong and time-saving replacement to home windows and a mouse. This powerful writer staff has written an instantly beneficial e-book, choked with examples and recommendations that clients of Unix, Linux, Mac OS X and Microsoft home windows can effectively apply.

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260 ■CHAPTER eleven Jobs and strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 getting to know activity keep watch over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 High-Power Command Substitutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 source Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271 mendacity concerning the application identify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 half three ■■■ Extending the Shell ■CHAPTER 12 Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Variable Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289 Numeric Variables and mathematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 advanced Variable Expansions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Associative Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three hundred Variable Indirection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 ■CHAPTER thirteen Scripting and services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Programming with the Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308 enter and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322 Propagating capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333 Traps and distinct capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 Defining New Globbing Qualifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 Debugging Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 Kiddle_3766Front . fm web page ix Friday, October 15, 2004 9:25 AM ■C O N T E N T S ■CHAPTER 14 Writing Editor instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347 Widgets and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347 easy Recipe for a Widget . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 Making Widgets Behave certainly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 Case learn I: a number of projects in Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . 355 Case examine 2: Overriding Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 Case learn three: finding Command-Line Arguments . . . . . . . . . . . . . . . . 359 Case learn four: Chaining Widgets jointly . . . . . . . . . . . . . . . . . . . . . . . . 360 Approximate Matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361 An instance Widget: Correcting Spelling . . . . . . . . . . . . . . . . . . . . . . . . . . 362 enter and Output inside of Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 ■CHAPTER 15 Writing of entirety services . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 Completions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 Helper features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382 dealing with types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392 Making complete Use of Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 Tags, Labels, and outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . four hundred Prefixes and Suffixes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403 Stand-alone of completion Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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