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1.1 root 1: .TH SUM 1 "18 January 1983"
2: .SH NAME
3: sum \- sum and count blocks in a file
4: .SH SYNOPSIS
5: .B sum
6: file
7: .SH DESCRIPTION
8: .I Sum
9: calculates and prints a 16-bit checksum for the named file,
10: and also prints the number of blocks in the file.
11: It is typically used to look for bad spots, or
12: to validate a file communicated over
13: some transmission line.
14: .SH "SEE ALSO"
15: wc(1)
16: .SH DIAGNOSTICS
17: `Read error'
18: is indistinguishable from end of file on
19: most devices; check the block count.
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