Why can't I install Quartus II for ubuntu OS?

jysea66@jysea66-laptop:~$ cd /home/jysea66 jysea66@jysea66-laptop:~$ chmod +x 10.0_quartus_free_linux.sh jysea66@jysea66-laptop:~$ sh ^Ch jysea66@jysea66-laptop:~$ sh 10.0_quartus_free_linux.s...