Name: pro bash programming,scripting the linux shell (en Inglés)
Price: 59.42 USD
Availability: InStock
Author: Johnson, Chris
ISBN: 9781430219972

portada pro bash programming,scripting the linux shell (en Inglés)

pro bash programming,scripting the linux shell (en Inglés)

Formato

Libro Físico

Autor

Chris Johnson

Editorial

Apress

Idioma

Inglés

N° páginas

350

Encuadernación

Tapa Blanda

Dimensiones

23.4 x 18.8 x 1.5 cm

Peso

0.45 kg.

ISBN

1430219971

ISBN13

9781430219972

Categorías

Programación informática/desarrollo de software

pro bash programming,scripting the linux shell (en Inglés)

Chris Johnson (Autor) · Apress · Tapa Blanda

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Reseña del libro "pro bash programming,scripting the linux shell (en Inglés)"

Introduction Although most users think of the shell as an interactive command interpreter, it is really a programming language in which each statement runs a command. Because it must satisfy both the interactive and programming aspects of command execution, it is a strange language, shaped as much by history as by design. Brian Kernighan and Rob Pike, The UNIX Programming Environment, Prentice-Hall, 1984 The shell is a programming language. Don't let anyone tell you otherwise. The shell is not just glue that sticks bits together. The shell is a lot more than a tool that runs other tools. The shell is a complete programming language! When a Linux user asked me about membership databases, I asked him what he really needed. He wanted to store names and addresses for a couple of hundred members and print mailing labels for each of them. I recommended using a text editor to store the information in a text file, and I provided a shell script to create the labels in PostScript. (The script, ps-labels, appeared in my first book, Shell Scripting Recipes: A Problem-Solution Approach. ) When the SWEN worm was dumping hundreds of megabytes of junk into my mailbox every few minutes, I wrote a shell script to filter them out on the mail server and download the remaining mail to my home computer. That script has been doing its job for several years.