取得目錄下的所有檔案 in LINUX (another approach)

#include <dirent.h>

    ...
    struct dirent **namelist;
    int filenumber;
    filenumber = scandir(".", &namelist, 0, alphasort);

    while(n--) {

            printf("%s\n", namelist[n]->d_name);

            free(namelist[n]);
        }
        free(namelist);
    }

...