@(#)getenv.3 5.1 (Berkeley) 05/15/85

.AT 3 getenv - value for environment name

 char *getenv(name)  char *name; 

Getenv .a searches the environment list (see environ (7)) for a string of the form name = value and returns a pointer to the string value if such a string is present, otherwise getenv returns the value 0 (NULL). environ(7), execve(2)