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wget讓你可以在console介面下

GNU Wget NEWS -- history of user-visible changes.

Copyright (C) 2005 Free Software Foundation, Inc.
See the end for copying conditions.

Please send GNU Wget bug reports to <[e-mail]>.

* Wget 1.10.1 is a bugfix release with no user-visible changes.

* Changes in Wget 1.10.

** Downloading files larger than 2GB, sometimes referred to as "large
files", now works on systems that support them.  This includes the
majority of modern Unixes, as well as MS Windows.

** IPv6 is now supported by Wget.  Unlike the experimental code in
1.9, this version supports dual-family systems.  The new flags
`--inet4' and `--inet6' (or `-4' and `-6' for short) force the use of
IPv4 and IPv6 respectively.  Note that IPv6 support has not yet been
tested on Windows.

** Microsoft's proprietary "NTLM" method of HTTP authentication is now
supported.  This authentication method is undocumented and only used
by IIS.  Note that *proxy* authentication is not supported in this
release; you can only authenticate to the target web site.

** Wget no longer truncates partially downloaded files when download
has to start over because the server doesn't support Range.  Instead,
with such servers Wget now simply ignores the data up to the byte
where the last attempt left off, and only then continues appending to
the file.  That way the downloaded file never shrinks, and download
retries from servers without support for partial downloads work even
when downloading to stdout.

** SSL/TLS changes:

*** SSL/TLS downloads now attempt to verify the server's certificate
against the recognized certificate authorities.  This requires CA
certificates to have been installed in a location visible to the
OpenSSL library.  If this is not the case, you can get the bundle
yourself from a source you trust (for example, the bundle extracted
from Mozilla available at http://curl.haxx.se/docs/caextract.html),
and point Wget to the PEM file using the `--ca-certificate'
command-line option or the corresponding `.wgetrc' command.

*** Secure downloads now verify that the host name in the URL matches
the "common name" in the certificate presented by the server.

*** Although the above checks provide more secure downloads, they
unavoidably break interoperability with some sites that worked with
previous versions, particularly those using self-signed, expired, or
otherwise invalid certificates.  If you encounter "certificate
verification" errors or complaints that "common name doesn't match
requested host name" and are convinced of the site's authenticity, you
can use `--no-check-certificate' to bypass both checks.

*** Talking to SSL/TLS servers over proxies now actually works.
Previous versions of Wget erroneously sent GET requests for https
URLs.  Wget 1.10 utilizes the CONNECT method designed for this
purpose.

*** The SSL/TLS-related options have been redesigned and, for the
first time, documented in the manual.  The old, undocumented, options
are no longer supported.

** Passive FTP is now the default FTP transfer mode.  Use
`--no-passive-ftp' or specify `passive_ftp = off' in your init file to
revert to the old behavior.

** The `--header' option can now be used to override generated
headers.  For example, `wget --header="Host: foo.bar"
http://127.0.0.1' tells Wget to connect to localhost, but to specify
"foo.bar" in the `Host' header.  In previous versions such use of
`--header' lead to duplicate headers in HTTP requests.

** The responses without headers, aka "HTTP 0.9" responses, are
detected and handled.  Although HTTP 0.9 has long been obsolete, it is
still occasionally used, sometimes by accident.

** The progress bar is now updated regularly even when the data does
not arrive from the network.

** Wget no longer preserves permissions of files retrieved by FTP by
default.  Anonymous FTP servers frequently use permissions like "664",
which might not be what the user wants.  The new option
`--preserve-permissions' and the corresponding `.wgetrc' variable can
be used to revert to the old behavior.

** The new option `--protocol-directories' instructs Wget to also use
the protocol name as a directory component of local file names.

** Options that previously unconditionally set or unset various flags
are now boolean options that can be invoked as either `--OPTION' or
`--no-OPTION'.  Options that required an argument "on" or "off" have
also been changed this way, but they still accept the old syntax for
backward compatibility.  For example, instead of `--glob=off' you can
write `--no-glob'.

Allowing `--no-OPTION' for every `--OPTION' and the other way around
is useful because it allows the user to override non-default behavior
specified via `.wgetrc'.

** The new option `--keep-session-cookies' causes `--save-cookies' to
save session cookies (normally only kept in memory) along with the
permanent ones.  This is useful because many sites track important
information, such as whether the user has authenticated, in session
cookies.  With this option multiple Wget runs are treated as a single
browser session.

** Wget now supports the --ftp-user and --ftp-password command
switches to set username and password for FTP, and the --user and
--password command switches to set username and password for both FTP
and HTTP.  The --http-passwd and --proxy-passwd command switches have
been renamed to --http-password and --proxy-password respectively, and
the related http_passwd and proxy_passwd .wgetrc commands to
http_password and proxy_password respectively.  The login and passwd
.wgetrc commands have been deprecated.

* `wget -b' now works correctly under Windows.

* Wget 1.9.1 is a bugfix release with no user-visible changes.

* Changes in Wget 1.9.

** It is now possible to specify that POST method be used for HTTP
requests.  For example, `wget --post-data="id=foo&data=bar" URL' will
send a POST request with the specified contents.

** IPv6 support is available, although it's still experimental.

** The `--timeout' option now also affects DNS lookup and establishing
the TCP connection.  Previously it only affected reading and writing
data.  Those three timeouts can be set separately using
`--dns-timeout', `--connection-timeout', and `--read-timeout',
respectively.

** Download speed shown by the progress bar is based on the data
recently read, rather than the average speed of the entire download.
The ETA projection is still based on the overall average.

** It is now possible to connect to FTP servers through FWTK
firewalls.  Set ftp_proxy to an FTP URL, and Wget will automatically
log on to the proxy as "username@host".

** The new option `--retry-connrefused' makes Wget retry downloads
even in the face of refused connections, which are otherwise
considered a fatal error.

** The new option `--no-dns-cache' may be used to prevent Wget from
caching DNS lookups.

** Wget no longer escapes characters in local file names based on
whether they're appropriate in URLs.  Escaping can still occur for
nonprintable characters or for '/', but no longer for frequent
characters such as space.  You can use the new option
--restrict-file-names to relax or strengthen these rules, which can be
useful if you dislike the default or if you're downloading to
non-native partitions.

** Handling of HTML comments has been dumbed down to conform to what
users expect and other browsers do: instead of being treated as SGML
declaration, a comment is terminated at the first occurrence of "-->".
Use `--strict-comments' to revert to the old behavior.

** Wget now correctly handles relative URIs that begin with "//", such
as "//img.foo.com/foo.jpg".

** Boolean options in `.wgetrc' and on the command line now accept
values "yes" and "no" along with the traditional "on" and "off".

** It is now possible to specify decimal values for timeouts, waiting
periods, and download rate.  For instance, `--wait=0.5' now works as
expected, as does `--dns-timeout=0.5' and even `--limit-rate=2.5k'.

* Wget 1.8.2 is a bugfix release with no user-visible changes.

* Wget 1.8.1 is a bugfix release with no user-visible changes.

* Changes in Wget 1.8.

** A new progress indicator is now available and used by default.
You can choose the progress bar type with `--progress=TYPE'.  Two
types are available, "bar" (the new default), and "dot" (the old
dotted indicator).  You can permanently revert to the old progress
indicator by putting `progress = dot' in your `.wgetrc'.

** You can limit the download rate of the retrieval using the
`--limit-rate' option.  For example, `wget --limit-rate=15k URL' will
tell Wget not to download the body of the URL faster than 15 kilobytes
per second.

** Recursive retrieval and link conversion have been revamped:

*** Wget now traverses links breadth-first.  This makes the
calculation of depth much more reliable than before.  Also, recursive
downloads are faster and consume *significantly* less memory than
before.

*** Links are converted only when the entire retrieval is complete.
This is the only safe thing to do, as only then is it known what URLs
have been downloaded.

*** BASE tags are handled correctly when converting links.  Since Wget
already resolves <base href="..."> when resolving handling URLs, link
conversion now makes the BASE tags point to an empty string.

*** HTML anchors are now handled correctly.  Links to an anchor in the
same document (<a href="#anchorname">), which used to confuse Wget,
are now converted correctly.

*** When in page-requisites (-p) mode, no-parent (-np) is ignored when
retrieving for inline images, stylesheets, and other documents needed
to display the page.

*** Page-requisites (-p) mode now works with frames.  In other words,
`wget -p URL-THAT-USES-FRAMES' will now download the frame HTML files,
and all the files that they need to be displayed properly.

** `--base' now works conjunction with `--input-file', providing a
base for each URL and thereby allowing the URLs in the file to be
relative.

** If a host has more than one IP address, Wget uses the other
addresses when accessing the first one fails.

** Host directories now contain port information if the URL is at a
non-standard port.

** Wget now supports the robots.txt directives specified in
<http://www.robotstxt.org/wc/norobots-rfc.txt>.

** URL parser has been fixed, especially the infamous overzealous
quoting.  Wget no longer dequotes reserved characters, e.g. `%3F' is
no longer translated to `?', nor `%2B' to `+'.  Unsafe characters
which are not reserved are still escaped, of course.

** No more than 20 successive redirections are allowed.

* Wget 1.7.1 is a bugfix release with no user-visible changes.

* Changes in Wget 1.7.

** SSL (`https') pages now work if you compile Wget with SSL support;
use the `--with-ssl' configure flag.  You need to have OpenSSL
installed.

** Cookies are now supported.  Wget will accept cookies sent by the
server and return them in later requests.  Additionally, it can load
and save cookies to disk, in the same format that Netscape uses.

** "Keep-alive" (persistent) HTTP connections are now supported.
Using keep-alive allows Wget to share one TCP/IP connection for
many retrievals, making multiple-file downloads faster and less
stressing for the server and the network.

** Wget now recognizes FTP directory listings generated by NT and VMS
servers.

** It is now possible to recurse through FTP sites where logging in
puts you in some directory other than '/'.

** You may now use `~' to mean home directory in `.wgetrc'.  For
example, `load_cookies = ~/.netscape/cookies.txt' works as you would
expect.

** The HTML parser has been rewritten.  The new one works more
reliably, allows finer-grained control over which tags and attributes
are detected, and has better support for some features like correctly
skipping comments and declarations, decoding entities, etc.  It is
also more general.

** <meta name="robots"> tags are now respected.

** Wget's internal tables now use hash tables instead of linked lists
where appropriate.  This results in huge speedups when retrieving
large sites (thousands of documents).

** Wget now has a man page, automatically generated from the Texinfo
documentation.  (The last version that shipped with a man page was
1.4.5).  To get this, you need to have pod2man from the Perl
distribution installed on your system.

* Changes in Wget 1.6