environ - external variable for environment

Syntax         extern char * *environ;

Description environ is an external variable that points to an array of strings with environment variables,

	called the "environment" in short. Each string in the array has the form "name=value", where name designates the environment variable and value represents its current value. Environment variables provide a way to make information about a program's environment available to applications (see section “Environment variables”).
Notes See also	The environ array should not be directly accessed by the application. exec, getenv(), putenv(), setenv(), unsetenv(), section “Environment variables”.