curl -L https://github.com/dhiltgen/docker-machine-kvm/releases/download/v0.10.0/docker-machine-driver-kvm-ubuntu14.04 > /usr/local/bin/docker-machine-driver-kvm \
它会下载一个名为 的文件docker-machine-driver-kvm-ubuntu14.04，然后呢？将其发送到目录/usr/local/bin/docker-machine-driver-kvm？
还有，\最后呢？