ln --symbolic ../../bysemester/f06/ai.pdf  ../../byexam/ai/f06.pdf
  ln --symbolic ../../bysemester/f06/ca.pdf  ../../byexam/ca/f06.pdf
  ln --symbolic ../../bysemester/f06/db.pdf  ../../byexam/db/f06.pdf
  ln --symbolic ../../bysemester/f06/gr.pdf  ../../byexam/gr/f06.pdf
  ln --symbolic ../../bysemester/f06/fc.pdf   ../../byexam/fc/f06.pdf
  ln --symbolic ../../bysemester/f06/ma.pdf  ../../byexam/ma/f06.pdf
# ln --symbolic ../../bysemester/f06/mp.pdf  ../../byexam/mp/f06.pdf
# ln --symbolic ../../bysemester/f06/na.pdf  ../../byexam/na/f06.pdf
  ln --symbolic ../../bysemester/f06/os.pdf ../../byexam/os/f06.pdf
  ln --symbolic ../../bysemester/f06/pl.pdf   ../../byexam/pl/f06.pdf
  ln --symbolic ../../bysemester/f06/net.pdf   ../../byexam/net/f06.pdf