I tried to use mysql but i found that it was broken so i tried to remove it by using the apt-get remove mysql* and it output a message to me: Try using apt-get -f install i tried it and i got this error:
/var/cache/apt/archives/mysql-server-5.6_5.6.28-0ubuntu0.15.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Any ideas?