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sum(1) - Unix First Edition Manual Page
11/3/71SUM (I)

NAME sum -- sum file
SYNOPSIS sum name
DESCRIPTION sum sums the contents of a file. In practice, it is mostoften used to verify that all of a DECtape can be read

without error.
FILES none
DIAGNOSTICS "?" if the file cannot be read at all or if an error isdiscovered during the read.

BUGS none