getenv

Environment variable

Syntax

value = getenv(name)

Description

value = getenv(name) searches the operating system environment variable list for text of the form name=value.

On UNIX^® platforms, the shell you use to start MATLAB^® determines the operating system environment. For example, starting MATLAB on a Mac platform from the Applications folder creates a different shell environment from starting MATLAB from Terminal.

Examples

Display System Root Directory on Windows

res = getenv('SYSTEMROOT')

res = 'C:\windows'

Input Arguments

name — Environment variable name

string | character vector

Environment variable name, specified as a string or a character vector.

Example: 'PATH'

Output Arguments

value — Environment variable value

character vector | []

Environment variable value, returned as a character vector. If name is not found, then MATLAB returns an empty matrix.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.