Re: [shell-script] Seq literal

[Tiago Barcellos Peczenyj]

On 10/29/07, Ivan lopes <address@hidden> wrote:
>
>  para o wget, teriamos:
>
>  $ wget www.link_0{0..5}.com.br

O "browser" curl tem uma sintaxe interna bem interessante

Do man curl:

 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

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

...

-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  you  have  number  of
       URLs.

       See  also  the --create-dirs option to create the local directo-
       ries dynamically.
--
O curl é tão util quanto o wget, porém é mais indicado para web
scripting enquanto o wget é um gerenciador de downloads (bem parrudo,
inclusive).

-- 
Tiago B Peczenyj
Linux User #405772

http://peczenyj.blogspot.com/