Provided by: rhash_1.2.8-3_amd64 bug

NAME

       rhash - calculate/check CRC32, MD5, SHA1, GOST, TTH, BTIH or other hash sums.

SYNOPSIS

       rhash [ option ]... [ file ]...

DESCRIPTION

       RHash  (Recursive  Hasher)  computes  and  verifies various message digests (hash sums) of
       files.  Supported message digests include CRC32, MD4, MD5, SHA1,  SHA256,  SHA512,  Tiger,
       DC++  TTH,  BitTorrent  BTIH,  AICH,  ED2K,  GOST  R 34.11-94, RIPEMD-160, HAS-160, EDON-R
       256/512, Whirlpool, Snefru-128/256.

       The program can create and verify Magnet links and eDonkey ed2k:// links, see --magnet and
       --ed2k-link options.

       A dash string parameter `-' is interpreted as stdin file.

       By  default  rhash  prints sums in SFV format with CRC32 hash sum only.  The format can be
       changed by options --bsd, --magnet, --simple, --printf, --template.  To  output  all  sums
       use the `-a' option.

       The  default  output  format  can  also  be  changed  by renaming the program or placing a
       hardlink/symlink to it with a name  containing  strings  `crc32',  `md4',  `md5',  `sha1',
       `sha256'   `sha512',   `tiger',   `tth',  `btih',  `aich',  `ed2k',  `ed2k-link',  `gost',
       `gost-cryptopro', `ripemd160', `has160', `whirlpool', `edonr256', `edonr512', `snefru128',
       `snefru256', `sfv' or `magnet'.

PROGRAM MODE OPTIONS

       The  default  mode  is  to  print hash sums for all files and directory trees specified by
       command line. The mode can be set by the following options.

       -c, --check
              Check hash files specified by command line. RHash can verify hash files in SFV  and
              BSD  formats, standard MD5 and SHA1 files, and text files containing magnet or ed2k
              links (one link per line).  Empty lines and lines starting  with  `;'  or  `#'  are
              skipped.   In  fact  RHash  can  verify most hash files generated by itself without
              formating options --printf and --template.

       -u, --update
              Update hash files specified by command line.  The program  calculates  and  appends
              hashes  to  the  updated  hash  file  in the format specified by formating options.
              Hashes are calculated for those files from the same directory  as  the  hash  file,
              which are yet not present in it.

       --check-embedded
              Verify files by crc32 sum embedded in their names.

       --torrent
              Create a torrent file for each processed file.

       -h, --help
              Help: print help screen and exit.

       -V, --version
              Version: print version and exit.

       -B, --benchmark
              Run benchmark for selected algorithm(s).

HASH SUMS OPTIONS

       -C, --crc32
              CRC32: calculate and print CRC32 hash sum.

       --md4  MD4: calculate and print MD4 hash sum.

       -M, --md5
              MD5: calculate and print MD5 hash sum.

       -H, --sha1
              SHA1: calculate and print SHA1 hash sum.

       --sha224, --sha256, --sha384, --sha512
              Calculate specified SHA2 hash sum.

       --tiger
              Tiger: calculate and print Tiger hash sum.

       -T, --tth
              TTH: calculate and print DC++ TTH sum.

       --btih BTIH: calculate and print BitTorrent Info Hash.

       -A, --aich
              AICH: calculate and print AICH hash.

       -E, --ed2k
              ED2K: calculate and print eDonkey 2000 hash sum.

       -L, --ed2k-link
              eDonkey link: calculate and print eDonkey link.

       -W, --whirlpool
              Whirlpool: calculate and print Whirlpool hash sum.

       -G, --gost
              GOST:  calculate  and  print  GOST  R 34.11-94 hash, the Russian GOST standard hash
              function.

       --gost-cryptopro
              GOST-CRYPTOPRO: calculate and print CryptoPro version of the GOST R  34.11-94  hash
              function.

       --ripemd160
              RIPEMD-160: calculate and print RIPEMD-160 hash sum.

       --has160
              HAS-160: calculate and print HAS-160 hash sum.

       --snefru128, --snefru256
              SNEFRU: calculate and print SNEFRU-128/256 hash sums.

       --edonr256, --edonr512
              EDON-R: calculate and print EDON-R 256/512 hash sums.

       -a, --all
              Calculate all supported hash sums.

       --list-hashes
              List names of all supported hashes, one per line.

MISCELLANEOUS OPTIONS

       -r, --recursive
              Process directories recursively.

       -v, --verbose
              Be verbose.

       --percents
              Show percents, while calculating or checking sums

       --skip-ok
              Don't print OK messages for successfully verified files.

       -i, --ignore-case
              Ignore case of filenames when updating crc files.

       --speed
              Print per-file and the total processing speed.

       -e, --embed-crc
              Rename files by inserting crc32 sum into name.

       --embed-crc-delimiter=<delimiter>
              Insert  specified  <delimiter> before a crc sum in the --embed-crc mode, default is
              white space. The <delimiter> can be a character or empty string.

       --path-separator=<separator>
              Use specified path separator to display paths.

       -q, --accept=<list>
              Set a comma‐delimited list of extensions of the files to calculate sums for.

       -t, --crc-accept=<list>
              Comma‐delimited list of crc files extensions.

       --maxdepth=<levels>
              Descend at most <levels> (a non‐negative integer) levels of directories  below  the
              command  line  arguments.  `--maxdepth 0' means only apply the tests and actions to
              the command line arguments.

       -o, --output=<file-path>
              Set the file to output calculated hashes and verification results to.

       -l, --log=<file-path>
              Set the file to log errors and verbose information to.

       --openssl=<list>
              Specify which hash functions should be calculated using the OpenSSL  library.   The
              <list> is a comma delimited list of hash names, but only those supported by openssl
              are allowed, e.g. md4, md5, sha1, sha256, ripemd160.  See openssl documentation for
              the full list.

       --gost-reverse
              Reverse  bytes  in  hexadecimal  output of the GOST hash sum.  The most significant
              bytes of the hash will be printed first.  Default order is  the  least  significant
              bytes first.

       --bt-private
              Generate BTIH for a private BitTorrent tracker.

       --bt-piece-length
              Set the piece length value for torrent file.

       --bt-announce
              Set  tracker  announcement url for torrent file.  Note that this url doesn't change
              BTIH hash.

       --benchmark-raw
              Switch benchmark output format to be a  machine‐readable  tab‐delimited  text  with
              hash  function  name,  speed,  cpu  clocks per byte.  This option works only if the
              --benchmark option was specified.

       -- (double dash)
              Mark the end of command line options. All parameters following the double dash  are
              interpreted  as  files  or  directories.  It is typically used to process filenames
              starting with a dash `-'.  Alternatively you can specify './' or full  path  before
              such files, so they will not look like options anymore.

OUTPUT FORMAT OPTIONS

       --sfv  Print hash sums in the SFV (Simple File Verification) output format (default).  But
              unlike common SFV file, not only CRC32, but any hash sums specified by options  can
              be printed.

       -m, --magnet
              Print hash sums formated as magnet links.

       --bsd  Use  BSD  output  format. Each hash sum is printed on separate line after hash name
              and file's path, enclosed in parentheses.

       --simple
              Use simple output format.  Each  line  will  consist  of  filename  and  hash  sums
              specified by options.

       --uppercase
              Print hash sums in upper case.

       --lowercase
              Print hash sums in lower case.

       --template=<file>
              Read printf‐like template from given <file>. See the --printf option.

       -p, --printf=<format>
              Format:  print  format string the standard output, interpreting `\' escapes and `%'
              directives. The escapes and directives are:

              \n     Newline.

              \r     Carriage return.

              \t     Horizontal tab.

              \\     A literal backslash (`\').

              \0     ASCII NUL.

              \NNN   The character which octal ASCII code is NNN.

              \xNN   The character which hexadecimal ASCII code is NN.

              A `\' character  followed  by  any  other  character  is  treated  as  an  ordinary
              character, so they both are printed.

              %%     A literal percent sign.

              %p     File's path.

              %f     File's name.

              %u     URL‐encoded filename.

              %s     File's size in bytes.

              %{mtime}
                     File's last modification time.

              %a or %A
                     AICH hash sum.

              %c or %C
                     CRC32 hash sum.  Use %c for lowercase and %C for uppercase characters.

              %g or %G
                     GOST R 34.11-94 hash.

              %h or %H
                     SHA1 hash.

              %e or %E
                     ED2K hash sum.

              %l or %L
                     EDonkey ed2k://... link.

              %m or %M
                     MD5 hash.

              %r or %R
                     RIPEMD-160 hash.

              %t or %T
                     TTH sum.

              %w or %W
                     Whirlpool hash.

              %{md4},    %{sha224},   %{sha256},   %{sha384},   %{sha512},   %{tiger},   %{btih},
              %{gost-cryptopro},    %{has160},    %{snefru128},    %{snefru256},    %{edon-r256},
              %{edon-r512}
                     Print specified hash sum. Actually the %{<hash sum>} directive can print any
                     supported hash sum. If a hash sum name starts with a capital letter then the
                     hash is printed in uppercase, e.g. %{TTH}, %{Sha512}.

              %x<hash>, %b<hash>, %B<hash>, %@<hash>
                     Use  one  of  these  prefixes  to  output a hash sum in hexadecimal, base32,
                     base64 or raw (binary) format respectively, e.g. %b{md4}, %BH or %xT.

CONFIG FILE

       RHash looks for a config file at $HOME/.rhashrc and /etc/rhashrc.

       The config file consists of lines formated as
              variable = value

       where the variable can be a text part of any command line  option,  like  magnet,  printf,
       percents, e.t.c.  Simple boolean values can be set using `1', `on' or `yes'.

       Empty lines and lines starting with `#' or `;' are ignored.

       Example config file:
       # This is a comment line
       percents = on
       crc-accept = .sfv,.md5,.sha1,.sha256,.sha512,.tth,.magnet

AUTHOR

       Aleksey Kravchenko <rhash.admin@gmail.com>

SEE ALSO

       md5sum(1) cksfv(1) ed2k_hash(1)

BUGS

       Bug  reports  are  welcome!   Send  them  by email or post to the SourceForge Bug Tracking
       System http://sourceforge.net/projects/rhash/