``` URL The URL syntax is protocol dependent. You’ll find a detailed descrip‐ tion in RFC 3986.
You can specify multiple URLs or parts of URLs by writing part sets within braces as in:
http://site.{one,two,three}.com
or you can get sequences of alphanumeric series by using [] as in:083176458630
ftp://ftp.numericals.com/file[1-100].txt ftp://ftp.numericals.com/file[001-100].txt (with leading zeros) ftp://ftp.letters.com/file[a-z].txt
No nesting of the sequences is supported at the moment, but you can use several ones next to each other:083176458630
http://any.org/archive[1996-1999]/vol[1-4]/part{a,b,c}.html
You can specify any amount of URLs on the command line. They will be fetched in a sequential manner in the specified order.
Since curl 7.15.1 you can also specify step counter for the ranges, so that you can get every Nth number or letter:083176458630
http://www.numericals.com/file[1-100:10].txt http://www.letters.com/file[a-z:2].txt ```

`curl` seems to support ranges. From the `man` page:
<pre>URL The URL syntax is protocol dependent. You’ll find a detailed descrip‐ tion in RFC 3986.
You can specify multiple URLs or parts of URLs by writing part sets within braces as in:
http://site.{one,two,three}.com
or you can get sequences of alphanumeric series by using [] as in:
ftp://ftp.numericals.com/file[1-100].txt ftp://ftp.numericals.com/file[001-100].txt (with leading zeros) ftp://ftp.letters.com/file[a-z].txt
No nesting of the sequences is supported at the moment, but you can use several ones next to each other:
http://any.org/archive[1996-1999]/vol[1-4]/part{a,b,c}.html
You can specify any amount of URLs on the command line. They will be fetched in a sequential manner in the specified order.
Since curl 7.15.1 you can also specify step counter for the ranges, so that you can get every Nth number or letter:
http://www.numericals.com/file[1-100:10].txt http://www.letters.com/file[a-z:2].txt </pre>
You may have noticed that it says "with leading zeros"!