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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LEARN ABOUT MOJAVE
curlopt_maxfilesize_large
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)