ln --symbolic ../../bysemester/s06/ai.pdf  ../../byexam/ai/s06.pdf
# ln --symbolic ../../bysemester/s06/ca.pdf  ../../byexam/ca/s06.pdf
# ln --symbolic ../../bysemester/s06/db.pdf  ../../byexam/db/s06.pdf
  ln --symbolic ../../bysemester/s06/gr.pdf  ../../byexam/gr/s06.pdf
# ln --symbolic ../../bysemester/s06/fc.pdf  ../../byexam/fc/s06.pdf
  ln --symbolic ../../bysemester/s06/mp.pdf  ../../byexam/mp/s06.pdf
# ln --symbolic ../../bysemester/s06/na.pdf  ../../byexam/na/s06.pdf
# ln --symbolic ../../bysemester/s06/os.pdf  ../../byexam/os/s06.pdf
# ln --symbolic ../../bysemester/s06/pl.ps   ../../byexam/pl/s06.ps
  ln --symbolic ../../bysemester/s06/net.pdf   ../../byexam/net/s06.pdf