GETENV(3)

NAME
       getenv - get an environment variable

SYNOPSIS
       #include <<stdlib.h>>

       char *getenv(const char *name);

DESCRIPTION
       The  getenv() function searches the environment list for a
       string that matches the string pointed to  by  name.   The
       strings are of the form name = value.

RETURN VALUE
       The  getenv()  function  returns a pointer to the value in
       the environment, or NULL if there is no match.

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO
       putenv(3) setenv(3) unsetenv(3) environ(5)