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1.1 root 1: .TH TSORT 1
2: .CT 1 files
3: .SH NAME
4: tsort \- topological sort
5: .SH SYNOPSIS
6: .B tsort
7: [
8: .I file
9: ]
10: .SH DESCRIPTION
11: .I Tsort
12: produces on the standard output a totally ordered list of items
13: consistent with a partial ordering of items
14: mentioned in the input
15: .IR file .
16: If no
17: .I file
18: is specified, the standard input is understood.
19: .PP
20: The input consists of pairs of items (nonempty strings)
21: separated by blanks.
22: Pairs of different items indicate ordering.
23: Pairs of identical items indicate presence, but not ordering.
24: .SH "SEE ALSO"
25: .IR lorder (1)
26: .SH DIAGNOSTICS
27: Odd data: there is an odd number of fields in the input file.
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