tsort(1)                                                           tsort(1)

NAME
     tsort - topological sort

SYNOPSIS
     tsort [file]

DESCRIPTION
     The tsort command (topological sort) 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 stan-
     dard input is understood.

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

     The tsort sorting sequence is not changed by the LCCOLLATE environ-
     ment variable.

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

LOCALE
     The language of the message texts is governed by the environment vari-
     able LCALL, LCMESSAGES or LANG.

     When the default is set, the system behaves as if it were not interna-
     tionalized, i.e. the message texts are in English. You must change one
     of these variables in order to change the language of the message
     texts.

     Detailed information on the dependencies of the environment variables
     and on internationalization in general can be found in the manual
     "Programmer's Guide: Internationalization - Localization". Refer also
     to environ(5) for information on setting the user environment.

SEE ALSO
     lorder(1).

















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