


SUM(1L)                                                   SUM(1L)


NNAAMMEE
       sum - checksum and count the blocks in a file

SSYYNNOOPPSSIISS
       ssuumm [-rs] [--sysv] [file...]

DDEESSCCRRIIPPTTIIOONN
       This  manual  page  documents the GNU version of ssuumm.  ssuumm
       computes a 16-bit checksum for each  named  file,  or  the
       standard  input if none are given or when a file named `-'
       is given.  It prints the checksum for each file along with
       the  number  of  blocks  in the file (rounded up), and the
       file name unless no arguments were given.  By default, the
       GNU ssuumm computes checksums using an algorithm that is com-
       patible with the BSD ssuumm and prints file sizes in units of
       1K blocks.

   OOPPTTIIOONNSS
       _-_r     Use  the  default (BSD compatible) algorithm.  This
              option is included for compatibility with the  Sys-
              tem V ssuumm.  Unless the _-_s option was also given, it
              has no effect.

       _-_s_, _-_-_s_y_s_v
              Compute checksums using an algorithm that  is  com-
              patible  with  the  one  the  System  V ssuumm uses by
              default and print file sizes in units  of  512-byte
              blocks instead of 1K.

       The  long-named options can be introduced with `+' as well
       as `--', for compatibility with previous releases.   Even-
       tually  support  for  `+'  will  be removed, because it is
       incompatible with the POSIX.2 standard.
























                                                                1


