oké.
ebben az esetben a fájlok is futtathatók.
olyan kéne, hogy chmod -R +x –a_fájlokat_ne_piszkáld

The letters `rwxXstugo’ select the new permissions for the affected users: read (r), write (w), execute (or access for  directo-
      ries)  (x), execute only if the file is a directory or already has execute permission for some user (X), set user or group ID on
      execution (s), sticky bit (t), the permissions that the user who owns the file currently has for it (u),  the  permissions  that
      other  users  in the file’s group have for it (g), and the permissions that other users not in the file’s group have for it (o).
      (Thus, `chmod g-s file’ removes the set-group-ID (sgid) bit, `chmod ug+s file’ sets both the suid and sgid  bits,  while  `chmod
      o+s file’ does nothing.)