sum -- Command

Print checksum of a file
sum [file ...]

sum prints an unsigned integer checksum  and a size in blocks (rounding up)
for each  file specified.   If more  than one file  is specified,  sum also
prints the  file name.   If no  file is specified,  sum reads  the standard
input.

sum may  be used to verify  the integrity of data  transferred across phone
lines or stored on an unreliable medium.

See Also

cmp,
commands

© 2012 by Stephen A. Ness