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getenv(3) [v7 man page]

GETENV(3)						     Library Functions Manual							 GETENV(3)

NAME
getenv - value for environment name SYNOPSIS
char *getenv(name) char *name; DESCRIPTION
Getenv searches the environment list (see environ(5)) for a string of the form name=value and returns value if such a string is present, otherwise 0 (NULL). SEE ALSO
environ(5), exec(2) GETENV(3)

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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)
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