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1.1 root 1: .\" @(#)sum.1 6.1 (Berkeley) 4/29/85
2: .\"
3: .TH SUM 1 "April 29, 1985"
4: .AT 3
5: .SH NAME
6: sum \- sum and count blocks in a file
7: .SH SYNOPSIS
8: .B sum
9: file
10: .SH DESCRIPTION
11: .I Sum
12: calculates and prints a 16-bit checksum for the named file,
13: and also prints the number of blocks in the file.
14: It is typically used to look for bad spots, or
15: to validate a file communicated over
16: some transmission line.
17: .SH "SEE ALSO"
18: wc(1)
19: .SH DIAGNOSTICS
20: `Read error'
21: is indistinguishable from end of file on
22: most devices; check the block count.
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