Bash Arrays: Difference between revisions

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Line 18: Line 18:
==Initialization==
==Initialization==


Individual elements are initialized by using [...] notation:
Individual elements are initialized by using ${''var-name''[''index'']}=''value'' notation:


  a[0]="something"
  a[0]="something"

Revision as of 21:24, 23 February 2018

Internal

Indexed Arrays

External

Overview

bash indexed arrays are 0-based and unidimensional. No explicit declaration is necessary if at least one element is initialized as described below:

Declaration

Initialization

Individual elements are initialized by using ${var-name[index]}=value notation:

a[0]="something"

Reference

Element arrays can be referenced with ${var-name[index]} notation:

echo ${a[0]}

Use Cases

Associative Arrays