stat [OPTION]... FILE...

Display file or file system status.

       -L, --dereference
              follow links

#include <sys/types.h>
       #include <sys/stat.h>
       #include <unistd.h>

       int stat(const char *path, struct stat *buf);

These functions return information about a file.   No  permissions  are
       required  on the file itself, but--in the case of stat() and lstat() --
       execute (search) permission is required on all of  the  directories  in
       path that lead to the file.