SUM(1) — USER COMMANDS
NAME
sum − sum and count blocks in a file
SYNOPSIS
sum file
DESCRIPTION
Sum calculates and displays a 16-bit checksum for the named file, and also displays the size of the file in kilobytes. It is typically used to look for bad spots, or to validate a file communicated over some transmission line.
SEE ALSO
DIAGNOSTICS
‘Read error’ is indistinguishable from end of file on most devices; check the block count.
Sun Release 2.0 — Last change: 15 October 1984