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What is the use of the local command in Linux

2025-04-04 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article is about what the local command is used for in Linux. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

The local command is used to define local variables within a function.

local Defines a local variable within a function.

Summary local [-aAfFgilnrtux] [-p] [name[=value]...] Definition of local variables within a function

Show local variables

Defining global variables within a function

Options The options of the local command are the same as those of the declare command, see Declare Options. Parameter name (optional): name of variable or defined function.

value (optional): The value of the variable.

Returns true unless you provide an illegal option, an assignment error, or use the local command outside of the function.

Examples For examples, see Declare command error usage Use this command outside of a function.

Note that this command is a bash built-in command. For help information, please see the help command and the corresponding sections of man bash and info bash.

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