A man clung for his life to an oceanside cliff in San Francisco early Friday as a rescue team used ropes to climb down and pull him to safety, officials said. Police received numerous calls of a 30-year-old man stuck on the side of the cliff about 1:30 a.m. on the 200 block of Sea Cliff Avenue, said Lt. Jonathan Baxter, a spokesman for the San Francisco Fire Department. Firefighters had to use multiple ropes to repel down the mountainside to bring the man, who was not identified, to safety.