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Linux shell scripting essentials : learn shell scripting to solve complex shell-related problems and efficiently automate your day-to-day tasks / Sinny Kumari

By: Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Community experience distilledPublisher: Birmingham : Packt Publishing, 2015Description: 1 online resource (1 volume)ISBN:
  • 9781783552375
  • 1783552379
Other title:
  • Learn shell scripting to solve complex shell-related problems and efficiently automate your day-to-day tasks
Subject(s): Additional physical formats: 9781785284441. | Erscheint auch als: 9781785284441 Druck-AusgabeDDC classification:
  • 005.432
LOC classification:
  • QA76.774.L46
  • T55.4-60.8
Online resources: Summary: Cover -- Copyright -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Table of Contents -- Preface -- Chapter 1: The Beginning of the Scripting Journey -- Hello World in shell -- Interacting with shell -- Let's make it scripted -- Define variables of choice -- Nomenclature -- Assigning a value -- Accessing a value -- Constant variables -- Reading variables from a user input -- Builtin shell variables -- Operators -- The assignment operator -- Arithmetic operators -- Logical operators -- Comparison operators -- Shell expansions -- ~ (Tilde) -- * (Asterisk) -- ? (Question mark) -- [ ] (Square brackets) -- { } (Curly brackets) -- Construct commands using eval -- Make bash behave using set -- Exit on the first failure -- Enabling/disabling symbolic link's resolution path -- Setting/unsetting variables -- Summary -- Chapter 2: Getting Hands-on with I/O, Redirection Pipes, and Filters -- Standard I/O and error streams -- File descriptors -- Redirecting the standard I/O and error streams -- Redirecting standard output -- Redirecting standard input -- Redirecting standard errors -- Multiple redirection -- Pipe and pipelines - connecting commands -- Pipe -- Pipeline -- Regular expressions -- Regular expression metacharacters -- Character ranges and classes -- Character ranges -- Matching dates in mm-dd-yyyy format -- Regex for a valid shell variable -- Filtering an output using grep -- Syntax -- Looking for a pattern in a file -- Looking for a pattern in multiple files -- A few more grep usages -- Searching in a binary file -- Searching in a directory -- Excluding files/directories from a search -- Display a filename with a matching pattern -- Matching an exact word -- Editing output using sed -- String substitution using s -- Multiple substitutions -- Duplicating a stream using tee.PPN: PPN: 860316602Package identifier: Produktsigel: ZDB-26-MYL | ZDB-30-PQE | ZDB-38-EBR
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