Did Ozzy write any sabbath or solo songs?

Yes, Ozzy Osbourne co-wrote many songs during his time with Black Sabbath, including classics like "Iron Man," "War Pigs," and "Paranoid." After leaving the band, he continued to write music as a solo artist, producing iconic tracks such as "Crazy Train," "Mr. Crowley," and "Bark at the Moon." His songwriting has played a significant role in shaping the heavy metal genre.