1GETENV(3) Linux Programmer's Manual GETENV(3)
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6 getenv - get an environment variable
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9 #include <stdlib.h>
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11 char *getenv(const char *name);
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14 The getenv() function searches the environment list for a string that
15 matches the string pointed to by name. The strings are of the form
16 name = value.
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19 The getenv() function returns a pointer to the value in the environā
20 ment, or NULL if there is no match.
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23 SVr4, POSIX.1-2001, 4.3BSD, C89, C99.
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26 clearenv(3), putenv(3), setenv(3), unsetenv(3), environ(7)
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30GNU 1993-04-03 GETENV(3)