GNU/Linux |
RedHat 5.2(Apollo) |
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putenv(3) |
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putenv − change or add an environment variable
#include <stdlib.h>
int putenv(const char *string);
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.
The putenv() function returns zero on success, or −1 if an error occurs.
ENOMEM |
Insufficient space to allocate new environment. |
SVID 3, POSIX, BSD 4.3
getenv(3), setenv(3), unsetenv(3), environ(5)
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putenv(3) | ![]() |