ln --symbolic ../../bysemester/f05/ai.pdf  ../../byexam/ai/f05.pdf
  ln --symbolic ../../bysemester/f05/ca.pdf  ../../byexam/ca/f05.pdf
  ln --symbolic ../../bysemester/f05/db.pdf  ../../byexam/db/f05.pdf
  ln --symbolic ../../bysemester/f05/gr.pdf  ../../byexam/gr/f05.pdf
  ln --symbolic ../../bysemester/f05/fc.pdf   ../../byexam/fc/f05.pdf
  ln --symbolic ../../bysemester/f05/mp.pdf  ../../byexam/mp/f05.pdf
# ln --symbolic ../../bysemester/f05/na.pdf  ../../byexam/na/f05.pdf
  ln --symbolic ../../bysemester/f05/net.html ../../byexam/net/f05.html
  ln --symbolic ../../bysemester/f05/os.html ../../byexam/os/f05.html
# ln --symbolic ../../bysemester/f05/pl.ps   ../../byexam/pl/f05.ps