Session and utilities

The declare command

Declares or shows variables (and arrays) with their attributes.

Syntax

declare [opciones] [nombre=valor]

Most useful options

-aCreates an array
-iIntegers only
-pShows the variable

Copy-ready examples

$ declare COLOR=azulCreate a variable
$ echo ${COLOR}Read it

You can try them in the browser terminal: it does not touch your computer.

Typical mistakes

  • local (inside functions) and declare (global) are similar.

Related commands

localexportunset

FAQ

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