In this article, we are going to discuss "Getting environment variable", which can be done using getenv() function. The getenv() function is used to get the operating system environment variable.
Syntax:
value = getenv(name)
Parameters: This function accepts a parameter name parameter.
- name: This is the specified name for which environmental variable is going to be searched.
Return Value: It returns the operating system environment variable.
Example 1
% MATLAB code for Environment Variable GFG
% has been created and later replaced with "C:\GFG" variable
% Calling the setenv() function
% to replace the "GFG" name
% with value "C:\GFG"
setenv('GFG','C:\GFG');
% Calling the getenv() function to
% Get the current environment variable name
getenv('GFG')
Output
ans = C:\GFG
Here the getenv() function returns the current environmental variable name "C:\GFG".
Example 2
% MATLAB code for Calling the setenv()
% to set the value
% "D:\geeksforgeeks\gfg" over
% the variable "a"
setenv('a','D:\geeksforgeeks\gfg');
% Calling the getenv() function to
% Get the current environment variable name
getenv('a')
Output
ans = D:\geeksforgeeks\gfg