for download

wget -r (--recursive)

wget -r -l 0  -c -np  -nH --cut-dirs=1 --reject index.html*  https://csweb.cs.uni-tuebingen.de/webprojects/biasbench-2025/
wget -r -l 0  -c -np  -nH --cut-dirs=1 --reject index.html*  https://www.cogsys.cs.uni-tuebingen.de/webprojects/biasbench-2025/
(name of web server may change, 2026-10 both works)
(Torrent with this size didn't work)

details on  https://github.com/cogsys-tuebingen/biasbench


--------------------------man wget (GNU Wget 1.21.4)--------------------------------------------------------------------------------
       -r
       --recursive
           Turn on recursive retrieving.    The default maximum depth is 5.

       -l depth
       --level=depth
           Set  the  maximum  number  of subdirectories that Wget will recurse into to depth.  In order to prevent one from accidentally downloading
           very large websites when using recursion this is limited to a depth of 5 by default, i.e., it will traverse at most  5  directories  deep
           starting from the provided URL.  Set -l 0 or -l inf for infinite recursion depth.



       -c
       --continue
           Continue getting a partially-downloaded file.  This is useful when you want to finish up a download started by  a  previous  instance  of
           Wget, or by another program.  For instance:


       -np
       --no-parent
           Do not ever ascend to the parent directory when retrieving recursively.  This is a useful option, since it guarantees that only the files
           below a certain hierarchy will be downloaded.




       --cut-dirs=number
           Ignore  number directory components.  This is useful for getting a fine-grained control over the directory where recursive retrieval will
           be saved.

           Take, for example, the directory at ftp://ftp.xemacs.org/pub/xemacs/.  If you retrieve it  with  -r,  it  will  be  saved  locally  under
           ftp.xemacs.org/pub/xemacs/.   While  the  -nH  option  can remove the ftp.xemacs.org/ part, you are still stuck with pub/xemacs.  This is
           where --cut-dirs comes in handy; it makes Wget not "see" number remote directory components.  Here are several examples of how --cut-dirs
           option works.

                   No options        -> ftp.xemacs.org/pub/xemacs/
                   -nH               -> pub/xemacs/
                   -nH --cut-dirs=1  -> xemacs/
                   -nH --cut-dirs=2  -> .

                   --cut-dirs=1      -> ftp.xemacs.org/xemacs/
                   ...

           If you just want to get rid of the directory structure, this option is similar to a combination of -nd  and  -P.   However,  unlike  -nd,
           --cut-dirs  does  not lose with subdirectories---for instance, with -nH --cut-dirs=1, a beta/ subdirectory will be placed to xemacs/beta,
           as one would expect.


       -R rejlist --reject rejlist
           Specify comma-separated lists of file name suffixes or patterns to accept or reject. Note that if any of the wildcard characters, *, ?, [
           or ], appear in an element of acclist or rejlist, it will be treated as a pattern, rather than a suffix.   In  this  case,  you  have  to
           enclose the pattern into quotes to prevent your shell from expanding it, like in -A "*.mp3" or -A '*.mp3'.