32v 1m sum

SUM(1) UNIX Programmer's Manual SUM(1)

NAME

    sum - sum and count blocks in a file

SYNOPSIS

    sum file

DESCRIPTION

    _S_u_m calculates and prints a 16-bit checksum for the named
    file, and also prints 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.

SEE ALSO

    wc(1)

DIAGNOSTICS

    `Read error' is indistinuishable from end of file on most
    devices; check the block count.