Download 1 file

curl -O https://example.com/files/README

Or

curl -o my-readme-file https://example.com/files/README

Download many files async

curl \
    -o file-name-1 https://example.com/files/file-1 \
    -o file-name-2 https://example.com/files/file-2

Reference

https://hackernoon.com/how-to-download-a-file-using-curl-with-examples-mon3ubd