How can I download files using curl from the command line? or What's the best way to download using c

Dude, `-L` is a MUST if there’s a redirect. Also, `--fail` ensures curl actually fails if the download’s borked instead of saving garbage.

For speed, tweak `--tcp-fastopen` or `--parallel` (if your curl version supports it).

But tbh, for 10GB+, consider a download manager like `axel`—it’s built for this.