@c This should really be generated automatically, possibly by including
@c an auto-generated file.
-@set VERSION 1.8.1+cvs
-@set UPDATED December 2001
+@set VERSION 1.9-cvs
+@set UPDATED September 2003
@dircategory Net Utilities
@dircategory World Wide Web
aborted when the quota is exceeded.
Setting quota to 0 or to @samp{inf} unlimits the download quota.
+
+@cindex DNS cache
+@cindex caching of DNS lookups
+@itemx --dns-cache=off
+Turn off caching of DNS lookups. Normally, Wget remembers the addresses
+it looked up from DNS so it doesn't have to repeatedly contact the DNS
+server for the same (typically small) set of addresses it retrieves
+from. This cache exists in memory only; a new Wget run will contact DNS
+again.
+
+However, in some cases it is not desirable to cache host names, even for
+the duration of a short-running application like Wget. For example,
+some HTTP servers are hosted on machines with dynamically allocated IP
+addresses that change from time to time. Their DNS entries are updated
+along with each change. When Wget's download from such a host gets
+interrupted by IP address change, Wget retries the download, but (due to
+DNS caching) it contacts the old address. With the DNS cache turned
+off, Wget will repeat the DNS lookup for every connect and will thus get
+the correct dynamic address every time---at the cost of additional DNS
+lookups where they're probably not needed.
+
+If you don't understand the above description, you probably won't need
+this option.
+
+@cindex file names, restrict
+@cindex Windows file names
+@itemx --restrict-file-names=none|unix|windows
+Restrict characters that may occur in local file names created by Wget
+from remote URLs. Characters that are considered @dfn{unsafe} under a
+set of restrictions are escaped, i.e. replaced with @samp{%XX}, where
+@samp{XX} is the hexadecimal code of the character.
+
+The default for this option depends on the operating system: on Unix and
+Unix-like OS'es, it defaults to ``unix''. Under Windows and Cygwin, it
+defaults to ``windows''. Changing the default is useful when you are
+using a non-native partition, e.g. when downloading files to a Windows
+partition mounted from Linux, or when using NFS-mounted or SMB-mounted
+Windows drives.
+
+When set to ``none'', the only characters that are quoted are those that
+are impossible to get into a file name---the NUL character and @samp{/}.
+The control characters, newline, etc. are all placed into file names.
+
+When set to ``unix'', additional unsafe characters are those in the
+0--31 range and in the 128--159 range. This is because those characters
+are typically not printable.
+
+When set to ``windows'', all of the above are quoted, along with
+@samp{\}, @samp{|}, @samp{:}, @samp{?}, @samp{"}, @samp{*}, @samp{<},
+and @samp{>}. Additionally, Wget in Windows mode uses @samp{+} instead
+of @samp{:} to separate host and port in local file names, and uses
+@samp{@@} instead of @samp{?} to separate the query portion of the file
+name from the rest. Therefore, a URL that would be saved as
+@samp{www.xemacs.org:4300/search.pl?input=blah} in Unix mode would be
+saved as @samp{www.xemacs.org+4300/search.pl@@input=blah} in Windows
+mode.
@end table
@node Directory Options, HTTP Options, Download Options, Invoking
Turning dirstruct on or off---the same as @samp{-x} or @samp{-nd},
respectively.
+@item dns_cache = on/off
+Turn DNS caching on/off. Since DNS caching is on by default, this
+option is normally used to turn it off. Same as @samp{--dns-cache}.
+
@item domains = @var{string}
Same as @samp{-D} (@pxref{Spanning Hosts}).
If set to on, remove @sc{ftp} listings downloaded by Wget. Setting it
to off is the same as @samp{-nr}.
+@item restrict_file_names = off/unix/windows
+Restrict the file names generated by Wget from URLs. See
+@samp{--restrict-file-names} for a more detailed description.
+
@item retr_symlinks = on/off
When set to on, retrieve symbolic links as if they were plain files; the
same as @samp{--retr-symlinks}.
projects / wget / blobdiff