мануал -o, --output <file>
Write output to <file> instead of stdout. If you are using {} or [] to fetch multiple documents, you
can use '#' followed by a number in the <file> specifier. That variable will be replaced with the
current string for the URL being fetched. Like in:

curl http://{one,two}.site.com -o "file_#1.txt"

or use several variables like:

curl http://{site,host}.host [1-5].com -o "#1_#2"

You may use this option as many times as the number of URLs you have.

See also the --create-dirs option to create the local directories dynamically. Specifying the output
as '-' (a single dash) will force the output to be done to stdout.