SUM(1) SUM(1)
NAME
sum - sum and count blocks in a file
SYNOPSIS
sum [ file ] ...
DESCRIPTION
Sum calculates and prints a 16-bit checksum along with the
length (in blocks) and name of each file. If no files are
given, the standard input is summed. If file is `-', file
names are read from standard input.
Sum is typically used to look for bad spots, or to validate
a file communicated over some transmission line.
SEE ALSO
wc(1).
DIAGNOSTICS
`Read error' is indistinguishable from end of file on most
devices; check the byte count.