Developer's Daily | Unix by Example |
main | java | perl | unix | dev directory | web log |
getenv ? get an environment variable |
#include <stdlib.h> char *getenv(const char *name); |
The getenv() function searches the environment list for a string that matches the string pointed to by name. The strings are of the form name = value. |
The getenv() function returns a pointer to the value in the environment, or NULL if there is no match. |
SVID 3, POSIX, BSD 4.3, ISO 9899 |
putenv(3), setenv(3), unsetenv(3), environ(5) |