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getenv

From cppreference.com
< c‎ | program
Defined in header <stdlib.h>
const char *getenv( const char *env_var );

Searches for an environmental variable with name env_var in the host-specified environment list and returns information associated with it. The set of environmental variables and methods of altering it are implementation-defined.

Contents

[edit] Parameters

env_var - null-terminated character string identifying the name of the environmental variable to look for

[edit] Return value

character string identifying the value of the environmental variable or NULL if such variable is not found.

[edit] Example

[edit] See also