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GETENV
Section: Linux Programmer's Manual (3)Updated: April 3, 1993
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getenv - ´Ä¶ÊÑ¿ô¤òÆÀ¤ë½ñ¼°
#include <stdlib.h> char *getenv(const char *name);
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´Ø¿ô getenv() ¤Ï¡¢ name ¤Ç¼¨¤µ¤ì¤ëʸ»úÎó¤ËŬ¹ç¤¹¤ëʸ»úÎó¤ò ´Ä¶¥ê¥¹¥È¤«¤é¸¡º÷¤¹¤ë¡£¤³¤Îʸ»úÎó¤Ï¡¢name = value ¤Î·Á¼°¤ò¤·¤Æ¤¤¤ë¡£ÊÖ¤êÃÍ
´Ø¿ô getenv() ¤Ï¡¢´Ä¶Ê¸»úÎó¤Ø¤ÎÃͤؤΥݥ¤¥ó¥¿¤ò¡¢¤¢¤ë¤¤¤Ï¡¢Ê¸»úÎó ¤¬Â¸ºß¤·¤Ê¤¤¤È¤¤Ë¤Ï¡¢NULL ¤òÊÖ¤¹¡£½àµò
SVID 3, POSIX, BSD 4.3, ISO 9899´ØÏ¢¹àÌÜ
putenv(3), setenv(3), unsetenv(3), environ(5)