wget: Advanced Usage
7.2 Advanced Usage
==================
• You have a file that contains the URLs you want to download? Use
the ‘-i’ switch:
wget -i FILE
If you specify ‘-’ as file name, the URLs will be read from
standard input.
• Create a five levels deep mirror image of the GNU web 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 https://www.gnu.org/ -o gnulog
• The same as the above, but convert the links in the downloaded
files to point to local files, so you can view the documents
off-line:
wget --convert-links -r https://www.gnu.org/ -o gnulog
• Retrieve only one HTML page, but make sure that all the elements
needed for the page to be displayed, such as inline images and
external style sheets, are also downloaded. Also make sure the
downloaded page references the downloaded links.
wget -p --convert-links http://www.example.com/dir/page.html
The HTML page will be saved to ‘www.example.com/dir/page.html’, and
the images, stylesheets, etc., somewhere under ‘www.example.com/’,
depending on where they were on the remote server.
• The same as the above, but without the ‘www.example.com/’
directory. In fact, I don’t want to have all those random server
directories anyway—just save _all_ those files under a ‘download/’
subdirectory of the current directory.
wget -p --convert-links -nH -nd -Pdownload \
http://www.example.com/dir/page.html
• 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, perhaps for post-processing.
wget --save-headers http://www.lycos.com/
more index.html
• Retrieve the first two levels of ‘wuarchive.wustl.edu’, saving them
to ‘/tmp’.
wget -r -l2 -P/tmp ftp://wuarchive.wustl.edu/
• You want to download all the GIFs from a directory on an HTTP
server. You tried ‘wget http://www.example.com/dir/*.gif’, but
that didn’t work because HTTP retrieval does not support globbing.
In that case, use:
wget -r -l1 --no-parent -A.gif http://www.example.com/dir/
More verbose, but the effect is the same. ‘-r -l1’ means to
retrieve recursively (⇒Recursive Download), with maximum
depth of 1. ‘--no-parent’ means that references to the parent
directory are ignored (⇒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 https://www.gnu.org/
• If you want to encode your own username and password to HTTP or
FTP, use the appropriate URL syntax (⇒URL Format).
wget ftp://hniksic:mypassword@unix.example.com/.emacs
Note, however, that this usage is not advisable on multi-user
systems because it reveals your password to anyone who looks at the
output of ‘ps’.
• You would like the output documents to go to standard output
instead of to files?
wget -O - http://jagor.srce.hr/ http://www.srce.hr/
You can also combine the two options and make pipelines to retrieve
the documents from remote hotlists:
wget -O - http://cool.list.com/ | wget --force-html -i -