Bash Parameter and Variable Expansion: Difference between revisions
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(Created page with "=Internal= * bash Parameters and Variables") |
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* [[Bash_Parameters_and_Variables#Parameter_and_Variable_Expansion_-_Accessing_a_Parameter.27s_or_Variable.27s_Value|bash Parameters and Variables]] | * [[Bash_Parameters_and_Variables#Parameter_and_Variable_Expansion_-_Accessing_a_Parameter.27s_or_Variable.27s_Value|bash Parameters and Variables]] | ||
=Overview= | |||
A dollar sign ($) that is NOT followed by an open parenthesis initiates parameter or variable expansion. The simplest case of parameter expansion is retrieving the parameter value: the associated value is retrieved by prefixing the parameter's number, character or name with $ or enclosing it in ${...}. | |||
Revision as of 21:10, 18 September 2019
Internal
Overview
A dollar sign ($) that is NOT followed by an open parenthesis initiates parameter or variable expansion. The simplest case of parameter expansion is retrieving the parameter value: the associated value is retrieved by prefixing the parameter's number, character or name with $ or enclosing it in ${...}.