The non-interactive network downloader

Recursive Retrieval Options
    -r
    --recursive
        Turn on recursive retrieving.    The default maximum depth is 5.

-m
--mirror
    Turn on options suitable for mirroring.  This option turns on recursion and time-stamping, sets
    infinite recursion depth and keeps FTP directory listings.  It is currently equivalent to -r -N -l
    inf --no-remove-listing.

-p
--page-requisites
    This option causes Wget to download all the files that are necessary to properly display a given HTML
    page.  This includes such things as inlined images, sounds, and referenced stylesheets.

           Ordinarily, when downloading a single HTML page, any requisite documents that may be needed to
           display it properly are not downloaded.  Using -r together with -l can help, but since Wget does not
           ordinarily distinguish between external and inlined documents, one is generally left with "leaf
           documents" that are missing their requisites.

           For instance, say document 1.html contains an "<IMG>" tag referencing 1.gif and an "<A>" tag pointing
           to external document 2.html.  Say that 2.html is similar but that its image is 2.gif and it links to
           3.html.  Say this continues up to some arbitrarily high number.

           If one executes the command:

                   wget -r -l 2 http://<site>/1.html

           then 1.html, 1.gif, 2.html, 2.gif, and 3.html will be downloaded.  As you can see, 3.html is without
           its requisite 3.gif because Wget is simply counting the number of hops (up to 2) away from 1.html in
           order to determine where to stop the recursion.  However, with this command:

                   wget -r -l 2 -p http://<site>/1.html

           all the above files and 3.html's requisite 3.gif will be downloaded.  Similarly,

                   wget -r -l 1 -p http://<site>/1.html

           will cause 1.html, 1.gif, 2.html, and 2.gif to be downloaded.  One might think that:

                   wget -r -l 0 -p http://<site>/1.html

           would download just 1.html and 1.gif, but unfortunately this is not the case, because -l 0 is
           equivalent to -l inf---that is, infinite recursion.  To download a single HTML page (or a handful of
           them, all specified on the command-line or in a -i URL input file) and its (or their) requisites,
           simply leave off -r and -l:

                   wget -p http://<site>/1.html

           Note that Wget will behave as if -r had been specified, but only that single page and its requisites
           will be downloaded.  Links from that page to external documents will not be followed.  Actually, to
           download a single page and all its requisites (even if they exist on separate websites), and make
           sure the lot displays properly locally, this author likes to use a few options in addition to -p:

                   wget -E -H -k -K -p http://<site>/<document>

           To finish off this topic, it's worth knowing that Wget's idea of an external document link is any URL
           specified in an "<A>" tag, an "<AREA>" tag, or a "<LINK>" tag other than "<LINK REL="stylesheet">".

wget [option]... [URL]...