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Mac OS X Tiger in a Nutshell by Jason McIntosh, Chuck Toporek, Chris Stone, Andy Lester

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Name

curl

Synopsis

curl [options] [URL
                     ...]

Transfers files to and from servers using one or more URLs. curl supports several common protocols specified in URL: HTTP, HTTPS, FTP, GOPHER, DICT, TELNET, LDAP, and FILE. The following descriptions and examples cover curl's basic operation; for a complete description, refer to curl's manpage.

URL expressions

{ a , b , c , ...}

Form multiple URLs, each using one of the alternate variables specified within the braces as part of its string. For example, this string expands into three different URLs: http://www. somesite.com/~{ jonny,andy,miho }.

[ n1 - n2 ]

Form multiple URLs, each using one of the letters or numbers in the range specified within the brackets as part of its string. For example, this string expands into five different URLs: http://www [1–5].somesite.com/. Note that brackets need to be escaped from the shell (i.e., preceded with a backslash or surrounded in quotes).

Selected options

-B offset, --use-ascii

Use ASCII mode for FTP and LDAP transfers.

-C offset, --continue-at offset

Resume transfer after skipping the first offset bytes of the source file, for cases in which the previous transfer attempt was interrupted.

-D filename, --dump-header filename

Save the HTTP headers or FTP server response lines in filename.

-M, --manual

Display a detailed usage manual.

-o filename, --output filename

Save downloaded data to filename instead of standard output. If you specify multiple URLs using braces or brackets and use # n within filename ...

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