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Top Forums Shell Programming and Scripting How to download X bytes from a file using ftp or http? Post 302335065 by learn more on Friday 17th of July 2009 07:13:39 AM
Old 07-17-2009
How to download X bytes from a file using ftp or http?

Hi,

I have a simple ftp shell script which can download the entire file, however I want to know if there is anyway that I can download only the partial content, say X bytes from a file. If so, how I can do it using ftp and http..


Here is my sample script

#!/bin/sh

HOST='xyz.com'
USER='anonymous'
PASSWD='xxxxx'
/usr/bin/ftp -v -n $HOST << _FTP
quote USER $USER
quote PASS $PASSWD
bin
prompt off
cd <dir>
get <remote-filename> <local-filename>
bye

_FTP
 

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CURLOPT_MAXFILESIZE_LARGE(3)				     curl_easy_setopt options				      CURLOPT_MAXFILESIZE_LARGE(3)

NAME
CURLOPT_MAXFILESIZE_LARGE - maximum file size allowed to download SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE_LARGE, curl_off_t size); DESCRIPTION
Pass a curl_off_t as parameter. This allows you to specify the maximum size (in bytes) of a file to download. If the file requested is found larger than this value, the transfer will not start and CURLE_FILESIZE_EXCEEDED will be returned. The file size is not always known prior to download, and for such files this option has no effect even if the file transfer ends up being larger than this given limit. This concerns both FTP and HTTP transfers. DEFAULT
None PROTOCOLS
FTP and HTTP EXAMPLE
TODO AVAILABILITY
Added in 7.11.0 RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. SEE ALSO
CURLOPT_MAXFILESIZE(3), CURLOPT_MAX_RECV_SPEED_LARGE(3), libcurl 7.54.0 February 03, 2016 CURLOPT_MAXFILESIZE_LARGE(3)
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