C Language: getenv function
(Get Environment String)
In the C Programming Language, the getenv function searches the environment list for the operating system and returns a pointer to the string associated with name.
Syntax
The syntax for the getenv function in the C Language is:
char *getenv(const char *name);
Parameters or Arguments
- name
- The string to find in the operating system's environment list.
Returns
The getenv function returns a pointer to the string associated with name from the operating system's environment list. If no match is found, the getenv function will return a null pointer.
Required Header
In the C Language, the required header for the getenv function is:
#include <stdlib.h>
Applies To
In the C Language, the getenv function can be used in the following versions:
- ANSI/ISO 9899-1990
Similar Functions
Other C functions that are similar to the getenv function:
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