@node getenv, environment
@subheading Syntax

@example
#include <stdlib.h>

char *getenv(const char *name);
@end example

@subheading Description

Get the setting of the environment variable @var{name}.  Do not alter or
free the returned value. 

@subheading Return Value

The value, or @code{NULL} if that variable does not exist.

@subheading Portability

@portability ansi, posix

@subheading Example

@example
char *term = getenv("TERM");
@end example