tsort(1)                 USER COMMANDS                   tsort(1)



NAME
     tsort - topological sort

SYNOPSIS
     tsort [file]

DESCRIPTION
     The tsort command produces on the standard output a  totally
     ordered  list of items consistent with a partial ordering of
     items mentioned in the input file.  If no file is specified,
     the standard input is understood.

     The input consists of  pairs  of  items  (nonempty  strings)
     separated by blanks.  Pairs of different items indicate ord-
     ering.  Pairs of identical items indicate presence, but  not
     ordering.

SEE ALSO
     lorder(1).

DIAGNOSTICS
     Odd data: there is an odd number  of  fields  in  the  input
     file.
































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