Can not run docker-compose up in docker container

[nimocat]

Hi, I followed the tutorial and I was doing what "Generate and start member organization" told me to do, when finished running "./generate-peer.sh", the terminal jumped into the container, I guess it wants me to run "docker-compose up" in that container, but as soon as I ran, I couldn't find docker-compose in that container, so plz tell me how to solve it. Thanks!