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This is Info file wget.info, produced by Makeinfo version 1.67 from the input file ./wget.texi. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided also that the sections entitled "Copying" and "GNU General Public License" are included exactly as in the original, and provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. File: wget.info, Node: Wgetrc Commands, Next: Sample Wgetrc, Prev: Wgetrc Syntax, Up: Startup File Wgetrc Commands =============== The complete set of commands is listed below, the letter after `=' denoting the value the command takes. It is `on/off' for `on' or `off' (which can also be `1' or `0'), STRING for any non-empty string or N for a positive integer. For example, you may specify `use_proxy = off' to disable use of PROXY servers by default. You may use `inf' for infinite values, where appropriate. Most of the commands have their equivalent command-line option (*Note Invoking::), except some more obscure or rarely used ones. accept/reject = STRING Same as `-A'/`-R' (*Note Types of Files::). add_hostdir = on/off Enable/disable host-prefixed file names. `-nH' disables it. always_rest = on/off Enable/disable continuation of the retrieval, the same as `-c'. base = STRING Set base for relative URLs, the same as `-B'. convert links = on/off Convert non-relative links locally. The same as `-k'. debug = on/off Debug mode, same as `-d'. delete_after = on/off Delete after download, the same as `--delete-after'. dir_mode = N Set permission modes of created subdirectories (default is 0755). dir_prefix = STRING Top of directory tree, the same as `-P'. dirstruct = on/off Turning dirstruct on or off, the same as `-x' or `-nd', respectively. domains = STRING Same as `-D' (*Note Domain Acceptance::). dot_bytes = N Specify the number of bytes "contained" in a dot, as seen throughout the retrieval (1024 by default). You can postfix the value with `k' or `m', representing kilobytes and megabytes, respectively. With dot settings you can tailor the dot retrieval to suit your needs, or you can use the predefined "styles" (*Note Advanced Options::). dots_in_line = N Specify the number of dots that will be printed in each line throughout the retrieval (50 by default). dot_spacing = N Specify the number of dots in a single cluster (10 by default). dot_style = STRING Specify the dot retrieval "style", as with `--dot-style'. exclude_directories = STRING Specify a comma-separated list of directories you wish to exclude from download, the same as `-X' (*Note Directory-Based Limits::). exclude_domains = STRING Same as `--exclude-domains' (*Note Domain Acceptance::). follow_ftp = on/off Follow FTP links from HTML documents, the same as `-f'. force_html = on/off If set to on, force the input filename to be regarded as an HTML document, the same as `-F'. ftp_proxy = STRING Use STRING as FTP proxy, instead of the one specified in environment. glob = on/off Turn globbing on/off, the same as `-g'. header = STRING Define an additional header, like `--header'. http_passwd = STRING Set HTTP password. http_proxy = STRING Use STRING as HTTP proxy, instead of the one specified in environment. http_user = STRING Set HTTP user to STRING. ignore_length = on/off When set to on, ignore `Content-Length' header; the same as `--ignore-length'. include_directories = STRING Specify a comma-separated list of directories you wish to follow when downloading, the same as `-I'. input = STRING Read the URLs from STRING, like `-i'. kill_longer = on/off Consider data longer than specified in content-length header as invalid (and retry getting it). The default behaviour is to save as much data as there is, provided there is more than or equal to the value in `Content-Length'. logfile = STRING Set logfile, the same as `-o'. login = STRING Your user name on the remote machine, for FTP Defaults to `anonymous'. mirror = on/off Turn mirroring on/off. The same as `-m'. noclobber = on/off Same as `-nc'. no_proxy = STRING Use STRING as the comma-separated list of domains to avoid in PROXY loading, instead of the one specified in environment. no_parent = on/off Disallow retrieving outside the directory hierarchy, like `--no-parent' (*Note Directory-Based Limits::). output_document = STRING Set the output filename, the same as `-O'. passive_ftp = on/off Set passive FTP, the same as `--passive-ftp'. passwd = STRING Set your FTP password to PASSWORD. Without this setting, the password defaults to `username@hostname.domainname'. quiet = on/off Quiet mode, the same as `-q'. quota = QUOTA Specify the download quota, which is useful to put in global wgetrc. When download quota is specified, Wget will stop retrieving after the download sum has become greater than quota. The quota can be specified in bytes (default), kbytes `k' appended) or mbytes (`m' appended). Thus `quota = 5m' will set the quota to 5 mbytes. Note that the user's startup file overrides system settings. reclevel = N Recursion level, the same as `-l'. recursive = on/off Recursive on/off, the same as `-r'. relative_only = on/off Follow only relative links, the same as `-L' (*Note Relative Links::). remove_listing = on/off If set to on, remove FTP listings downloaded by Wget. Setting it to off is the same as `-nr'. retr_symlinks = on/off When set to on, retrieve symbolic links as if they were plain files; the same as `--retr-symlinks'. robots = on/off Use (or not) `/robots.txt' file (*Note Robots::). Be sure to know what you are doing before changing the default (which is `on'). server_response = on/off Choose whether or not to print the HTTP and FTP server responses, the same as `-S'. simple_host_check = on/off Same as `-nh' (*Note Host Checking::). span_hosts = on/off Same as `-H'. timeout = N Set timeout value, the same as `-T'. timestamping = on/off Turn timestamping on/off. The same as `-N' (*Note Time-Stamping::). tries = N Set number of retries per URL, the same as `-t'. use_proxy = on/off Turn PROXY support on/off. The same as `-Y'. verbose = on/off Turn verbose on/off, the same as `-v'/`-nv'. wait = N Wait N seconds between retrievals, the same as `-w'. File: wget.info, Node: Sample Wgetrc, Prev: Wgetrc Commands, Up: Startup File Sample Wgetrc ============= This is the sample initialization file, as given in the distribution. It is divided in two section--one for global usage (suitable for global startup file), and one for local usage (suitable for `$HOME/.wgetrc'). Be careful about the things you change. Note that all the lines are commented out. For any line to have effect, you must remove the `#' prefix at the beginning of line. ### ### Sample initialization file .wgetrc ### ## You can use this file to change the default behaviour of wget or to ## avoid having to type many many command-line options. This file does ## not contain a comprehensive list of commands -- look at the manual ## to find out what you can put into this file. ## ## Wget initialization file can reside in /usr/local/etc/wgetrc ## (global, for all users) or $HOME/.wgetrc (for a single user). ## ## To use any of the settings in this file, you will have to uncomment ## them (and probably change them). ## ## Global settings (useful for setting up in /usr/local/etc/wgetrc). ## Think well before you change them, since they may reduce wget's ## functionality, and make it behave contrary to the documentation: ## # You can set retrieve quota for beginners by specifying a value # optionally followed by 'K' (kilobytes) or 'M' (megabytes). The # default quota is unlimited. #quota = inf # You can lower (or raise) the default number of retries when # downloading a file (default is 20). #tries = 20 # Lowering the maximum depth of the recursive retrieval is handy to # prevent newbies from going too "deep" when they unwittingly start # the recursive retrieval. The default is 5. #reclevel = 5 # Many sites are behind firewalls that do not allow initiation of # connections from the outside. On these sites you have to use the # `passive' feature of FTP. If you are behind such a firewall, you # can turn this on to make Wget use passive FTP by default. #passive_ftp = off ## ## Local settings (for a user to set in his $HOME/.wgetrc). It is ## *highly* undesirable to put these settings in the global file, since ## they are potentially dangerous to "normal" users. ## ## Even when setting up your own ~/.wgetrc, you should know what you ## are doing before doing so. ## # Set this to on to use timestamping by default: #timestamping = off # It is a good idea to make Wget send your email address in a `From:' # header with your request (so that server administrators can contact # you in case of errors). Wget does *not* send `From:' by default. #header = From: Your Name <username@site.domain> # You can set up other headers, like Accept-Language. Accept-Language # is *not* sent by default. #header = Accept-Language: en # You can set the default proxy for Wget to use. It will override the # value in the environment. #http_proxy = http://proxy.yoyodyne.com:18023/ # If you do not want to use proxy at all, set this to off. #use_proxy = on # You can customize the retrieval outlook. Valid options are default, # binary, mega and micro. #dot_style = default # Setting this to off makes Wget not download /robots.txt. Be sure to # know *exactly* what /robots.txt is and how it is used before changing # the default! #robots = on # It can be useful to make Wget wait between connections. Set this to # the number of seconds you want Wget to wait. #wait = 0 # You can force creating directory structure, even if a single is being # retrieved, by setting this to on. #dirstruct = off # You can turn on recursive retrieving by default (don't do this if # you are not sure you know what it means) by setting this to on. #recursive = off # To have Wget follow FTP links from HTML files by default, set this # to on: #follow_ftp = off File: wget.info, Node: Examples, Next: Various, Prev: Startup File, Up: Top Examples ******** The examples are classified into three sections, because of clarity. The first section is a tutorial for beginners. The second section explains some of the more complex program features. The third section contains advice for mirror administrators, as well as even more complex features (that some would call perverted). * Menu: * Simple Usage:: Simple, basic usage of the program. * Advanced Usage:: Advanced techniques of usage. * Guru Usage:: Mirroring and the hairy stuff. File: wget.info, Node: Simple Usage, Next: Advanced Usage, Prev: Examples, Up: Examples Simple Usage ============ * Say you want to download a URL. Just type: wget http://fly.cc.fer.hr/ The response will be something like: --13:30:45-- http://fly.cc.fer.hr:80/ => `index.html' Connecting to fly.cc.fer.hr:80... connected! HTTP request sent, fetching headers... done. Length: 1,749 [text/html] 0K -> . 13:30:46 (68.32K/s) - `index.html' saved [1749/1749] * But what will happen if the connection is slow, and the file is lengthy? The connection will probably fail before the whole file is retrieved, more than once. In this case, Wget will try getting the file until it either gets the whole of it, or exceeds the default number of retries (this being 20). It is easy to change the number of tries to 45, to insure that the whole file will arrive safely: wget --tries=45 http://fly.cc.fer.hr/jpg/flyweb.jpg * Now let's leave Wget to work in the background, and write its progress to log file `log'. It is tiring to type `--tries', so we shall use `-t'. wget -t 45 -o log http://fly.cc.fer.hr/jpg/flyweb.jpg & The ampersand at the end of the line makes sure that Wget works in the background. To unlimit the number of retries, use `-t inf'. * The usage of FTP is as simple. Wget will take care of login and password. $ wget ftp://gnjilux.cc.fer.hr/welcome.msg --23:35:55-- ftp://gnjilux.cc.fer.hr:21/welcome.msg => `welcome.msg' Connecting to gnjilux.cc.fer.hr:21... connected! Logging in as anonymous ... Logged in! ==> TYPE I ... done. ==> CWD not needed. ==> PORT ... done. ==> RETR welcome.msg ... done. Length: 1,340 (unauthoritative) 0K -> . 23:35:56 (37.39K/s) - `welcome.msg' saved [1340] * If you specify a directory, Wget will retrieve the directory listing, parse it and convert it to HTML. Try: wget ftp://prep.ai.mit.edu/pub/gnu/ lynx index.html File: wget.info, Node: Advanced Usage, Next: Guru Usage, Prev: Simple Usage, Up: Examples Advanced Usage ============== * You would like to read the list of URLs from a file? Not a problem with that: wget -i file If you specify `-' as file name, the URLs will be read from standard input. * Create a mirror image of GNU WWW site (with the same directory structure the original has) with only one try per document, saving the log of the activities to `gnulog': wget -r -t1 http://www.gnu.ai.mit.edu/ -o gnulog * Retrieve the first layer of yahoo links: wget -r -l1 http://www.yahoo.com/ * Retrieve the index.html of `www.lycos.com', showing the original server headers: wget -S http://www.lycos.com/ * Save the server headers with the file: wget -s http://www.lycos.com/ more index.html * Retrieve the first two levels of `wuarchive.wustl.edu', saving them to /tmp. wget -P/tmp -l2 ftp://wuarchive.wustl.edu/ * You want to download all the GIFs from an HTTP directory. `wget http://host/dir/*.gif' doesn't work, since HTTP retrieval does not support globbing. In that case, use: wget -r -l1 --no-parent -A.gif http://host/dir/ It is a bit of a kludge, but it works perfectly. `-r -l1' means to retrieve recursively (*Note Advanced Options::), with maximum depth of 1. `--no-parent' means that references to the parent directory are ignored (*Note Directory-Based Limits::), and `-A.gif' means to download only the GIF files. `-A "*.gif"' would have worked too. * Suppose you were in the middle of downloading, when Wget was interrupted. Now you do not want to clobber the files already present. It would be: wget -nc -r http://www.gnu.ai.mit.edu/ * If you want to encode your own username and password to HTTP or FTP, use the appropriate URL syntax (*Note URL Format::). wget ftp://hniksic:mypassword@jagor.srce.hr/.emacs * If you do not like the default retrieval visualization (1K dots with 10 dots per cluster and 50 dots per line), you can customize it through dot settings (*Note Wgetrc Commands::). For example, many people like the "binary" style of retrieval, with 8K dots and 512K lines: wget --dot-style=binary ftp://prep.ai.mit.edu/pub/gnu/README You can experiment with other styles, like: wget --dot-style=mega ftp://ftp.xemacs.org/pub/xemacs/xemacs-19.15.tar.gz wget --dot-style=micro http://fly.cc.fer.hr/ To make these settings permanent, put them in your `.wgetrc', as described before (*Note Sample Wgetrc::). File: wget.info, Node: Guru Usage, Prev: Advanced Usage, Up: Examples Guru Usage ========== * If you wish Wget to keep a mirror of a page (or FTP subdirectories), use `--mirror' (`-m'), which is the shorthand for `-r -N'. You can put Wget in the crontab file asking it to recheck a site each Sunday: crontab 0 0 * * 0 wget --mirror ftp://ftp.xemacs.org/pub/xemacs/ -o /home/me/weeklog * You may wish to do the same with someone's home page. But you do not want to download all those images--you're only interested in HTML. wget --mirror -A.html http://www.w3.org/ * But what about mirroring the hosts networkologically close to you? It seems so awfully slow because of all that DNS resolving. Just use `-D' (*Note Domain Acceptance::). wget -rN -Dsrce.hr http://www.srce.hr/ Now Wget will correctly find out that `regoc.srce.hr' is the same as `www.srce.hr', but will not even take into consideration the link to `www.mit.edu'. * You have a presentation and would like the dumb absolute links to be converted to relative? Use `-k': wget -k -r URL * You would like the output documents to go to standard output instead of to files? OK, but Wget will automatically shut up (turn on `--quiet') to prevent mixing of Wget output and the retrieved documents. wget -O - http://jagor.srce.hr/ http://www.srce.hr/ You can also combine the two options and make weird pipelines to retrieve the documents from remote hotlists: wget -O - http://cool.list.com/ | wget --force-html -i - File: wget.info, Node: Various, Next: Appendices, Prev: Examples, Up: Top Various ******* This chapter contains all the stuff that could not fit anywhere else. * Menu: * Distribution:: Getting the latest version. * Mailing List:: Wget mailing list for announcements and discussion. * Reporting Bugs:: How and where to report bugs. * Portability:: The systems Wget works on. * Signals:: Signal-handling performed by Wget. File: wget.info, Node: Distribution, Next: Mailing List, Prev: Various, Up: Various Distribution ============ Like all GNU utilities, the latest version of Wget can be found at the master GNU archive site prep.ai.mit.edu, and its mirrors. For example, Wget 1.4.3 is at: <URL:ftp://prep.ai.mit.edu/pub/gnu/wget-1.4.3.tar.gz>. The latest version is also available via FTP from the maintainer's machine, at: <URL:ftp://gnjilux.cc.fer.hr/pub/unix/util/wget/wget.tar.gz>. This location is mirrored at: <URL:ftp://sunsite.auc.dk/pub/infosystems/wget/> and <URL:http://sunsite.auc.dk/ftp/pub/infosystems/wget/>. <URL:ftp://ftp.fu-berlin.de/pub/unix/network/wget/> I'll try to make a "real" home page for Wget some time in the future. If you would like to do it, please say so--I'll be delighted. File: wget.info, Node: Mailing List, Next: Reporting Bugs, Prev: Distribution, Up: Various Mailing List ============ Wget has its own mailing list at `<wget@sunsite.auc.dk>', thanks to Karsten Thygesen. The mailing list is for discussion of Wget features and web, reporting Wget bugs (those that you think may be of interest to the public) and mailing announcements. You are welcome to subscribe. The more people on the list, the better! To subscribe, send mail to `<wget-request@sunsite.auc.dk>' with the magic word `subscribe' in the subject line. Unsubscribe analogously. The mailing list is archived at `http://fly.cc.fer.hr/en/wget-archive.mbox'. File: wget.info, Node: Reporting Bugs, Next: Portability, Prev: Mailing List, Up: Various Reporting Bugs ============== You are welcome to send bug reports about GNU Wget to `<bug-wget@prep.ai.mit.edu>'. The bugs that you think are of the interest to the public (i.e. more people should be informed about them) can be Cc-ed to the mailing list at `<wget@sunsite.auc.dk>'. Before actually submitting a bug report, please try to follow a few simple guidelines. 1. Please try to ascertain that the behaviour you see really is a bug. If Wget crashes, it's a bug. If Wget does not behave as documented, it's a bug. If things work strange, but you are not sure about the way they are supposed to work, it might well be a bug. 2. Try to repeat the bug in as simple circumstances as possible. E.g. if Wget crashes on `wget -rLl0 -t5 -Y0 http://yoyodyne.com -o /tmp/log', you should try to see if it will crash with a simpler set of options. 3. Please start Wget with `-d' option and send the log (or the relevant parts of it). If Wget was compiled without debug support, recompile it. It is *much* easier to trace bugs with debug support on. 4. If Wget has crashed, try to run it in a debugger, e.g. `gdb `which wget` core' and type `where' to get the backtrace. 5. Find where the bug is, fix it and send me the patches. :-) File: wget.info, Node: Portability, Next: Signals, Prev: Reporting Bugs, Up: Various Portability =========== Since Wget uses GNU Autoconf for building and configuring, and avoids using "special" features of any one Unix system, it should compile (and work) on all common flavors of Unix. This version was compiled and tested this version on various Unix systems, including Solaris, Linux, SunOS, OSF (aka Digital Unix), and Ultrix; refer to the file `MACHINES' in the distribution directory for a comprehensive list. If you compile it on an architecture not listed there, please let me know. Wget should also compile on the other Unix systems, not listed in `MACHINES'. If it doesn't, please let me know. File: wget.info, Node: Signals, Prev: Portability, Up: Various Signals ======= Since the purpose of Wget is background work, it catches the hangup signal (`SIGHUP') and ignores it. If the output was on standard output, it will be redirected to a file named `wget-log'. Otherwise, `SIGHUP' is ignored. This is convenient when you wish to redirect the output of Wget after having started it. $ wget http://www.ifi.uio.no/~larsi/gnus.tar.gz & $ kill -HUP %% # Redirect the output to wget-log Other than that, Wget will not try to interfere with signals in any way. `C-c', `kill -TERM' and `kill -KILL' should kill it alike. File: wget.info, Node: Appendices, Next: Copying, Prev: Various, Up: Top Appendices ********** This chapter contains some references I consider useful, like the Robots Exclusion Standard specification, as well as a list of contributors to GNU Wget. * Menu: * Robots:: Wget as a WWW robot. * Security Considerations:: Security with Wget. * Contributors:: People who helped. File: wget.info, Node: Robots, Next: Security Considerations, Prev: Appendices, Up: Appendices Robots ====== Since Wget is able to traverse the web, it counts as one of the Web "robots". Thus Wget understands "Robots Exclusion Standard" (RES)--contents of `/robots.txt', used by server administrators to shield parts of their systems from wanderings of Wget. Norobots support is turned on only when retrieving recursively, and *never* for the first page. Thus, you may issue: wget -r http://fly.cc.fer.hr/ First the index of fly.cc.fer.hr will be downloaded. If Wget finds anything worth downloading on the same host, only *then* will it load the robots, and decide whether or not to load the links after all. `/robots.txt' is loaded only once per host. Wget does not support the robots `META' tag. The description of the norobots standard was written, and is maintained by Martijn Koster `<m.koster@webcrawler.com>'. With his permission, I contribute a (slightly modified) texified version of the RES. * Menu: * Introduction to RES:: * RES Format:: * User-Agent Field:: * Disallow Field:: * Norobots Examples:: File: wget.info, Node: Introduction to RES, Next: RES Format, Prev: Robots, Up: Robots Introduction to RES ------------------- "WWW Robots" (also called "wanderers" or "spiders") are programs that traverse many pages in the World Wide Web by recursively retrieving linked pages. For more information see the robots page. In 1993 and 1994 there have been occasions where robots have visited WWW servers where they weren't welcome for various reasons. Sometimes these reasons were robot specific, e.g. certain robots swamped servers with rapid-fire requests, or retrieved the same files repeatedly. In other situations robots traversed parts of WWW servers that weren't suitable, e.g. very deep virtual trees, duplicated information, temporary information, or cgi-scripts with side-effects (such as voting). These incidents indicated the need for established mechanisms for WWW servers to indicate to robots which parts of their server should not be accessed. This standard addresses this need with an operational solution. This document represents a consensus on 30 June 1994 on the robots mailing list (`robots@webcrawler.com'), between the majority of robot authors and other people with an interest in robots. It has also been open for discussion on the Technical World Wide Web mailing list (`www-talk@info.cern.ch'). This document is based on a previous working draft under the same title. It is not an official standard backed by a standards body, or owned by any commercial organization. It is not enforced by anybody, and there no guarantee that all current and future robots will use it. Consider it a common facility the majority of robot authors offer the WWW community to protect WWW server against unwanted accesses by their robots. The latest version of this document can be found at: http://info.webcrawler.com/mak/projects/robots/norobots.html File: wget.info, Node: RES Format, Next: User-Agent Field, Prev: Introduction to RES, Up: Robots RES Format ---------- The format and semantics of the `/robots.txt' file are as follows: The file consists of one or more records separated by one or more blank lines (terminated by `CR', `CR/NL', or `NL'). Each record contains lines of the form: <field>:<optionalspace><value><optionalspace> The field name is case insensitive. Comments can be included in file using UNIX bourne shell conventions: the `#' character is used to indicate that preceding space (if any) and the remainder of the line up to the line termination is discarded. Lines containing only a comment are discarded completely, and therefore do not indicate a record boundary. The record starts with one or more User-agent lines, followed by one or more Disallow lines, as detailed below. Unrecognized headers are ignored. The presence of an empty `/robots.txt' file has no explicit associated semantics, it will be treated as if it was not present, i.e. all robots will consider themselves welcome. File: wget.info, Node: User-Agent Field, Next: Disallow Field, Prev: RES Format, Up: Robots User-Agent Field ---------------- The value of this field is the name of the robot the record is describing access policy for. If more than one User-agent field is present the record describes an identical access policy for more than one robot. At least one field needs to be present per record. The robot should be liberal in interpreting this field. A case insensitive substring match of the name without version information is recommended. If the value is `*', the record describes the default access policy for any robot that has not matched any of the other records. It is not allowed to have multiple such records in the `/robots.txt' file. File: wget.info, Node: Disallow Field, Next: Norobots Examples, Prev: User-Agent Field, Up: Robots Disallow Field -------------- The value of this field specifies a partial URL that is not to be visited. This can be a full path, or a partial path; any URL that starts with this value will not be retrieved. For example, `Disallow: /help' disallows both `/help.html' and `/help/index.html', whereas `Disallow: /help/' would disallow `/help/index.html' but allow `/help.html'. Any empty value, indicates that all URLs can be retrieved. At least one Disallow field needs to be present in a record. File: wget.info, Node: Norobots Examples, Prev: Disallow Field, Up: Robots Norobots Examples ----------------- The following example `/robots.txt' file specifies that no robots should visit any URL starting with `/cyberworld/map/' or `/tmp/': # robots.txt for http://www.site.com/ User-agent: * Disallow: /cyberworld/map/ # This is an infinite virtual URL space Disallow: /tmp/ # these will soon disappear This example `/robots.txt' file specifies that no robots should visit any URL starting with `/cyberworld/map/', except the robot called `cybermapper': # robots.txt for http://www.site.com/ User-agent: * Disallow: /cyberworld/map/ # This is an infinite virtual URL space # Cybermapper knows where to go. User-agent: cybermapper Disallow: This example indicates that no robots should visit this site further: # go away User-agent: * Disallow: / File: wget.info, Node: Security Considerations, Next: Contributors, Prev: Robots, Up: Appendices Security Considerations ======================= When using Wget, you must be aware that it is sends unencrypted passwords through the network, which may present a security problem. Here are the main issues, and some solutions. 1. The passwords on the command line are visible using `ps'. If this is a problem, avoid putting passwords from the command line--e.g. you can use `.netrc' for this. 2. Only the insecure "basic" authentication scheme is supported in HTTP, which also sends unencrypted passwords through the network all routers and gateways. Feel free to implement something better. 3. The FTP passwords are also in no way encrypted. There is no good solution for this at the moment. 4. Although the "normal" output of Wget tries to hide the passwords, debugging logs show them, in all forms. This problem is avoided by being careful when you send debug logs (yes, even when you send them to me). File: wget.info, Node: Contributors, Prev: Security Considerations, Up: Appendices Contributors ============ GNU Wget was written by Hrvoje Niksic `<hniksic@srce.hr>'. However, its development could never have gone as far as it has, were it not for the help of many people, either with bug reports, feature proposals, patches, or letters saying "Thanks!". Special thanks goes to the following people (no particular order): * Karsten Thygesen--donated FTP space and mailing list. * Shawn McHorse--bug reports and patches. * Kaveh R. Gazi--on-the-fly ansi2knr-ization. * Gordon Matzigkeit--`.netrc' support. * Zlatko Calusic, Drazen Kacar--feature suggestions and "philosophical" discussions. * Darko Budor--port to Windows. * Antonio Rosella--help and suggestions. * Tomislav Petrovic, Mario Mikocevic--many bug reports and suggestions. The following people have either provided bug reports, useful suggestoins, or beta tested the various releases: Dieter Baron, Roger Beeman, Mark Boyns, Kristijan Conkas, Damir Dzeko, Andrew Davison, Marc Duponcheel, Aleksandar Erkalovic, Gregor Hoffleit, Erik Magnus Hulthen, Richard Huveneers, Marijo Juric, Goran Kezunovic, Martin Kraemer, Tage Stabell-Kulo, Hrvoje Lacko, Francois Pinard, Andrew Pollock, Steve Pothier, Sven Sternberger, Markus Strasser, Russell Vincent, Tomislav Vujec, Jasmin Zainul, Bojan Zdrnja, Kristijan Zimmer. I apologize to all whom I forgot to mention (probably a lot). Also thanks to all the subscribers of the Wget mailing list.