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1.1 ! root 1: .th SUM I 3/15/72 ! 2: .sh NAME ! 3: sum \*- sum file ! 4: .sh SYNOPSIS ! 5: .bd sum ! 6: name ... ! 7: .sh DESCRIPTION ! 8: .it Sum ! 9: sums the contents of the bytes (mod 2^16) of ! 10: one or more files and prints the answer in octal. ! 11: A separate sum is printed for each file specified, ! 12: along with the number of whole or partial ! 13: 512-byte blocks read. ! 14: .s3 ! 15: In practice, ! 16: .it sum ! 17: is often used to verify that ! 18: all of a special file can be read without error. ! 19: .sh BUGS
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