ln --symbolic ../../bysemester/s07/ai.pdf  ../../byexam/ai/s07.pdf
# ln --symbolic ../../bysemester/s07/ca.pdf  ../../byexam/ca/s07.pdf
  ln --symbolic ../../bysemester/s07/db.pdf  ../../byexam/db/s07.pdf
# ln --symbolic ../../bysemester/s07/gr.pdf  ../../byexam/gr/s07.pdf
# ln --symbolic ../../bysemester/s07/fc.pdf  ../../byexam/fc/s07.pdf
  ln --symbolic ../../bysemester/s07/mp.pdf  ../../byexam/mp/s07.pdf
# ln --symbolic ../../bysemester/s07/na.pdf  ../../byexam/na/s07.pdf
  ln --symbolic ../../bysemester/s07/os.pdf  ../../byexam/os/s07.pdf
# ln --symbolic ../../bysemester/s07/pl.ps   ../../byexam/pl/s07.ps
# ln --symbolic ../../bysemester/s07/net.pdf   ../../byexam/net/s07.pdf