getenv(3c) [hpux man page]

getenv(3C)																getenv(3C)

NAME

       getenv() - return value for environment name

SYNOPSIS

DESCRIPTION

       searches  the  environment  list (see environ(5)) for a string of the form and returns a pointer to the value in the current environment if
       such a string is present or a NULL pointer if it is not.  name can be either the desired name, null-terminated, or of  the  form  in  which
       case uses the portion to the left of the as the search key.

       If the optional HP Getenv-Perf-Enh product is installed on the system, the performance of in threaded applications may increase.

WARNINGS

       returns a pointer to static data which can be overwritten by subsequent calls.

EXTERNAL INFLUENCES

   Locale
       The category determines the interpretation of characters in name as single and/or multibyte characters.

   International Code Set Support
       Single and multibyte character code sets are supported.

SEE ALSO

       exec(2), putenv(3C), environ(5), thread_safety(5).

STANDARDS CONFORMANCE

																	getenv(3C)

getenv(3)						     Library Functions Manual							 getenv(3)

NAME

       getenv - Returns the value of an environment variable

LIBRARY

       Standard C Library (libc.so, libc.a)

SYNOPSIS

       #include <stdlib.h>

       char *getenv(
	       const char *name);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       getenv():  XPG4, XPG4-UNIX

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS

       Specifies the name of an environment variable.

DESCRIPTION

       The  getenv()  function searches the environment list for a string of the form name=value, and returns a pointer to a string containing the
       corresponding value for name.

       The returned string should not be modified by the application, but may be overwritten by a subsequent call  to  the  getenv()  or  putenv()
       functions from the same thread.

RETURN VALUES

       The getenv() function returns a pointer to a string containing the value in the current environment if such a string is present.  If such a
       string is not present, a null pointer is returned.

RELATED INFORMATION

       Functions: putenv(3), clearenv(3)

       Commands: sh(1)

       Standards: standards(5) delim off

																	 getenv(3)