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getcwd/getwd : È¡µÃĿǰËùÔÚĿ¼
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#include
char * getcwd(char *buf,size_t size);
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#include
char *getwd(char *buf);
getwdÊǸöΣÏյĺ¯Êý£¬Ò»°ã¶¼»áÇ¿ÁÒ½¨Òé²»ÒªÓã¬ÒòΪÄúÎÞ·¨È·¶¨×µÄĿ¼³¤¶ÈΪ¶àÉÙ¡£PATH_MAX¶¨ÒåÁË×µÄ·¾¶³¤¶È¡£ÔÚLinuxÏÂËùÒÔÌṩÕâ¸öº¯ÊýÖ÷ÒªÊÇÒòΪ¡¸´«Í³¡¹¡£
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//»ñȡϵͳĿ¼×î´ó³¤¶È
long pathconf(char* path, int flag);
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chdir/fchdir/chroot : ¸Ä±äĿǰËùÔÚĿ¼
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#include
int chdir(const char * pathname);
int fchdir(int fd);
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//sample
/*¸ü¸Äµ±Ç°¹¤×÷Ŀ¼µ½Éϼ¶Ä¿Â¼*/
if(chdir("..")==-1){
perror("Couldn't change current working directory.\n");
return 1;
}
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#include
int chroot(const char * path);
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