$ java -jar ldspider-1.3-with-dependencies.jar 

usage:   [-a <filename[.gz]>] [-accept <MIME Types>] [-any23] [-any23ext <any23
       extractor names>] -b <depth uri-limit pld-limit> | -c <max-uris> | -d
       <directory> [-bl <extensions>]  [-ctIgnore] [-cto <time in ms>]  [-dbfq]
       [-dbfqInput <filename>] [-dbfqSave <basefilename>] [-df <base filename>]
       [-dh <filename>] [-dr] [-ds <filename>] [-e] [-f <uris> | -n | -y] [-h]
       [-hopsplit] [-lfADignore] [-m <frontier-file>] [-mapseed] [-minpld <min.
       # of active PLDs>] [-mr <max. # of redirects>]  [-o <filename[.gz]> | -oe
       <uri>]  [-polite <time in ms>] [-r <filename[.gz]>] [-resumebfc <seenfile
       redirectsfile>] [-rf] -s <file> [-sdf <sort gzip>] [-sto <time in ms>]
       [-t <threads>] [-ul <number>] [-v <filename[.gz]>]

 -a <filename[.gz]>                       name of access log file
 -accept <MIME Types>                     Change the HTTP Accept header to the
                                          one supplied
 -any23                                   Use any23 for extending the formats
                                          available to parse.
 -any23ext <any23 extractor names>        Override the defaultly selected
                                          extractors that are to be loaded with
                                          any23. Leave empty to use all any23
                                          has available. Default: [html-rdfa11,
                                          rdf-xml, rdf-turtle, rdf-nt, rdf-nq,
                                          html-script-turtle]
 -b <depth uri-limit pld-limit>           do strict breadth-first (uri-limit and
                                          pld-limit optional)
 -bl <extensions>                         overwrite default suffixes of files
                                          that are to be ignored in the crawling
                                          with the ones supplied. Note: no
                                          suffix is also an option. Default:
                                          [.txt, .html, .xhtml, .json, .ttl,
                                          .nt, .jpg, .pdf, .htm, .png, .jpeg,
                                          .gif]
 -c <max-uris>                            use load balanced crawling strategy
 -ctIgnore                                Parse and fetch disrespective of
                                          content-type
 -cto,--connection-timeout <time in ms>   Set connection timeout. Default:
                                          16000ms
 -d <directory>                           download seed URIs and archive raw
                                          data
 -dbfq                                    Uses the on-disk BreadthFirstQueue if
                                          crawling breadth-first. Does not
                                          support uri-limit and pld-limit (see
                                          -b). Needs -sdf sort to be set. Ranks
                                          URIs on the PLDs according to their
                                          in-link count.
 -dbfqInput <filename>                    For the on-disk breadth-first queue
                                          (-dbfq), use this file as input for
                                          the eternal in-link count.
 -dbfqSave <basefilename>                 For the on-disk breadth-first queue
                                          (-dbfq), save the eternal in-link
                                          count per URI after each hop to this
                                          file.
 -df <base filename>                      Dump frontier after each round to file
                                          (only breadth-first). File name
                                          format: <base filename>-<round number>
 -dh <filename>                           Dump header information to a separate
                                          file. It makes no sense to set -e at
                                          the same time.
 -dr                                      Do not use Redirects.class for
                                          Redirects handling
 -ds <filename>                           Choose the on-disk Seen
                                          implementation. Argument: basefilename
 -e                                       omit header triple in data
 -f,--follow <uris>                       only follow specific predicates
 -h,--help                                print help
 -hopsplit                                split output hopwise
 -lfADignore                              Make No difference between A and T box
                                          in crawling
 -m <frontier-file>                       memory-optimised (puts frontier on
                                          disk)
 -mapseed                                 Sets if the minimum active plds should
                                          already be taken into account
                                          downloading the seedlist.
 -minpld <min. # of active PLDs>          In order to avoid PLD starvation, set
                                          the minimum number of active plds for
                                          each breadth first queue round. The
                                          seedlist is always downloaded
                                          completely (see -mapseed).
 -mr <max. # of redirects>                Specify the length a redirects (30x)
                                          is allowed to have at max. (default:
                                          4; with seq.strategy: 1).
 -n                                       do not extract links - just follow
                                          redirects
 -o <filename[.gz]>                       name of NQuad file with output
 -oe <uri>                                SPARQL/Update endpoint for output
 -polite <time in ms>                     Time to wait between two requests to a
                                          PLD.
 -r <filename[.gz]>                       write redirects.nx file
 -resumebfc <seenfile redirectsfile>      Resume an interrupted breadth-first
                                          crawl. Requires a seen file and a
                                          redirects file. The old frontier
                                          should be the seedlist.
 -rf,--rankFrontier                       If set, the URIs in frontier are
                                          ranked according to their number of
                                          in-links, and alphabetically as second
                                          ordering. Use this option for
                                          something like a priority queue.
 -s <file>                                location of seed list
 -sdf <sort gzip>                         Use SortingDiskFrontier as frontier.
                                          If URIs are to be returned sorted, add
                                          "sort" as value, if all temp files
                                          involved are to be gzipped, add
                                          "gzip".
 -sto,--socket-timeout <time in ms>       Set socket timeout. Default: 16000ms
 -t <threads>                             number of threads (default 2)
 -ul <number>                             Sets a limit for the Uris downloaded
                                          overall containing >0 stmts. Hits the
                                          interval [limit;limit+#threads]. Not
                                          necessarily intended for load-balanced
                                          crawling.
 -v <filename[.gz]>                       name of file logging rounds
 -y,--stay                                stay on hostnames of seed uris