snarf(1) [debian man page]
snarf(1) General Commands Manual snarf(1) NAME
snarf - Simple Non-interactive All-purpose Resource Fetcher SYNOPSIS
snarf [-avqprzm] URL [outfile] ... DESCRIPTION
Retrieves data from a variety of protocols, namely http, ftp, and gopher. USAGE
snarf is invoked with any number of URLs and outfiles. If an outfile is not specified, snarf preserves the remote file name when saving. For example, snarf http://foo.bar.com/images/face.gif will retrieve the file ``face.gif'' to the local system. In the event that there is no filename (the url ends in a slash), the data is retrieved and stored in the file index.html for http URLs, ftpindex.txt for ftp URLs, or gopherindex.txt for gopher URLs. Using a dash, "-", as the outfile causes snarf to send its output to stdout rather than a file. To log in to an ftp server or website that requires a username and password, use the syntax http://username:password@site.com/. If you omit the password, you will be prompted for it. Snarf has a built-in option to download the latest version of itself; simply run snarf LATEST. OPTIONS -a Causes snarf to use "active" ftp. By default, snarf uses passive ftp, and, if the server does not support it, falls back to active ftp. Using the -a option will avoid the initial passive attempt. -r Resumes an interrupted ftp or http transfer by checking if there is a local file with the same name as the remote file, and starting the transfer at the end of the local file and continuing until finished. This option only works with HTTP servers that understand HTTP/1.1 and ftp servers that support the REST command. snarf uses this option automatically if the outfile already exists. -n Don't resume; ignore the outfile if it exists and re-transfer it in its entirety. -q Don't print progress bars. -p Forces printing of progress bars. Snarf has a compile-time option for whether progress bars print by default or not. The -p option overrides the -q option. In addition, if progress bars are enabled by default, snarf suppresses them when standard output is not a terminal. Using -p will override this behavior. -v Prints all messages that come from the server to stderr. -z Send a user-agent string similar to what Netscape Navigator 4.0 uses. -m Send a user-agent string similar to what Microsoft Internet Explorer uses. Each option only affects the URL that immediately follows it. To have an option affect all URLs that follow it, use an uppercase letter for the option, e.g. -Q instead of -q. ENVIRONMENT
Snarf checks several environment variables when deciding what to use for a proxy. It checks a service-specific variable first, then SNARF_PROXY, then PROXY. The service-specific variables are HTTP_PROXY, FTP_PROXY, and GOPHER_PROXY. Snarf also checks the SNARF_HTTP_USER_AGENT environment variable and will use it when reporting its user-agent string to an HTTP server. In the same spirit, it also uses the SNARF_HTTP_REFERER environment variable to spoof a Referer to the web server. BUGS
Bugs? What bugs? If you find 'em, report 'em. AUTHOR
Copyright (C) 2000 Zachary Beane (xach@xach.com) 17 Jun 2000 snarf(1)
Check Out this Related Man Page
AXEL(1) General Commands Manual AXEL(1) NAME
Axel - A light download accelerator for Linux. SYNOPSIS
axel [OPTIONS] url1 [url2] [url...] DESCRIPTION
Axel is a program that downloads a file from a FTP or HTTP server through multiple connection, each connection downloads its own part of the file. Unlike most other programs, Axel downloads all the data directly to the destination file, using one single thread. It just saves some time at the end because the program doesn't have to concatenate all the downloaded parts. OPTIONS
One argument is required, the URL to the file you want to download. When downloading from FTP, the filename may contain wildcards and the program will try to resolve the full filename. Multiple URL's can be specified as well and the program will use all those URL's for the download. Please note that the program does not check whether the files are equal. Other options: --max-speed=x, -s x You can specify a speed (bytes per second) here and Axel will try to keep the average speed around this speed. Useful if you don't want the program to suck up all of your bandwidth. --num-connections=x, -n x You can specify an alternative number of connections here. --output=x, -o x Downloaded data will be put in a local file with the same name, unless you specify a different name using this option. You can spec- ify a directory as well, the program will append the filename. --search[=x], -S[x] Axel can do a search for mirrors using the filesearching.com search engine. This search will be done if you use this option. You can specify how many different mirrors should be used for the download as well. The search for mirrors can be time-consuming because the program tests every server's speed, and it checks whether the file's still available. --no-proxy, -N Don't use any proxy server to download the file. Not possible when a transparent proxy is active somewhere, of course. --verbose If you want to see more status messages, you can use this option. Use it more than once if you want to see more. --quiet, -q No output to stdout. --alternate, -a This will show an alternate progress indicator. A bar displays the progress and status of the different threads, along with current speed and an estimate for the remaining download time. --header=x, -H x Add an additional HTTP header. This option should be in the form "Header: Value". See RFC 2616 section 4.2 and 14 for details on the format and standardized headers. --user-agent=x, -U x Set the HTTP user agent to use. Some websites serve different content based upon this parameter. The default value will include "Axel", its version and the platform. --help, -h A brief summary of all the options. --version, -V Get version information. NOTE
Long (double dash) options are supported only if your platform knows about the getopt_long call. If it does not (like *BSD), only the short options can be used. RETURN VALUE
The program returns 0 when the download was succesful, 1 if something really went wrong and 2 if the download was interrupted. If something else comes back, it must be a bug.. EXAMPLES
axel ftp://ftp.{be,nl,uk,de}.kernel.org/pub/linux/kernel/v2.4/linux-2.4.17.tar.bz2 This will use the Belgian, Dutch, English and German kernel.org mirrors to download a Linux 2.4.17 kernel image. axel -S4 ftp://ftp.kernel.org/pub/linux/kernel/v2.4/linux-2.4.17.tar.bz2 This will do a search for the linux-2.4.17.tar.bz2 file on filesearching.com and it'll use the four (if possible) fastest mirrors for the download. (Possibly including ftp.kernel.org) (Of course, the commands are a single line, but they're too long to fit on one line in this page.) FILES
/etc/axelrc System-wide configuration file. Note that development versions place this file in /usr/local/etc. ~/.axelrc Personal configuration file These files are not documented in a man-page, but the example file which comes with the program contains enough information, I hope. The position of the system-wide configuration file might be different. COPYRIGHT
Axel is Copyright 2001-2002 Wilmer van der Gaast. BUGS
Please report bugs at https://alioth.debian.org/tracker/?group_id=100070&atid=413085. AUTHORS
Wilmer van der Gaast. <wilmer@gaast.net> AXEL(1)