NAME sum - compute the checksum and block count of a file SYNOPSIS sum file EXAMPLES sum /user/ast/xyz # Checksum /user/ast/xyz DESCRIPTION Sum computes the checksum of one or more files. It is most often used to see if a file copied from another machine has been correctly received. This program works best when both machines use the same checksum algorithm. See also crc. SEE ALSO cksum(1), crc(1).