PUTENV
Section: Linux Programmer's Manual (3)
Updated: April 8, 1993
NAME
putenv - change or add an environment variable
SYNOPSIS
#include <stdlib.h>
int putenv(const char *string);
DESCRIPTION
The putenv() function adds or changes the value of environment
variables. The argument string is of the form name=value.
If name does not already exist in the environment, then
string is added to the environment. If name does exist,
then the value of name in the environment is changed to
value.
RETURN VALUE
The putenv() function returns zero on success, or -1 if an error
occurs.
ERRORS
- ENOMEM
-
Insufficient space to allocate new environment.
CONFORMING TO
SVID 3, POSIX, BSD 4.3
SEE ALSO
getenv(3),
setenv(3),
unsetenv(3),
environ(5)