sum(1)                              CLIX                              sum(1)



  NAME

    sum - Displays checksum and block count of a file

  SYNOPSIS

    sum [-pr] file

  FLAGS

    -pr   Causes an alternate algorithm to be used in computing the checksum.

  DESCRIPTION

    The sum command calculates and displays a 16-bit checksum for the named
    file, and also displays the number of blocks in the file.  It is typically
    used to look for bad spots, or to validate a file communicated over some
    transmission line.

  EXAMPLES

    1.  To display the checksum and block count for filea and fileb:

        sum filea fileb


    2.  To display the checksum for data taken from stdin using the alternate
        checksum computation, enter this command line:

        sum -pr


  DIAGNOSTICS

    Read error   Indistinguishable from end-of-file on most devices; check the
                 block count.

  EXIT VALUES

    The sum command exits with a nonzero value if a read error occurs.

  RELATED INFORMATION

    Commands: wc(1)










  2/94 - Intergraph Corporation                                              1