SUM(1)                  COMMAND REFERENCE                  SUM(1)



NAME
     sum - generate checksum and count 1024-byte blocks in a file

SYNOPSIS
     sum [ filename... ]

DESCRIPTION
     Sum calculates and prints a 16-bit checksum for the named
     file, and also prints the number of 1024-byte blocks in the
     file.  It is typically used to look for bad spots, or to
     validate a file communicated over some transmission line.

EXAMPLES
     The following example will print the checksum followed by a
     block count and the filename for each file in /da/tmp:



          sum /da/tmp/*


DIAGNOSTICS
     Read error               This response is indistinguishable
                              from end-of-file on most devices;
                              check the block count.

RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [NP_WARN]      An error warranting a warning message
                    occurred. Execution continues.

     [P_WARN]       A system error occurred. Execution continues.
                    See intro(2) for more information on system
                    errors.

SEE ALSO
     wc(1).

















Printed 10/17/86                                                1

%%index%%
na:72,96;
sy:168,117;
de:285,350;
ex:635,221;
di:856,279;
rv:1135,414;
se:1549,83;
%%index%%000000000116