tsort(1)                                                 tsort(1)



NAME
     tsort - sorts lines in a file topologically

SYNOPSIS
     tsort [file]

ARGUMENTS
     file Specifies the input file on which the sort will be
          performed.  If this option is not specified, the
          standard input is understood.

DESCRIPTION
     tsort produces on the standard output a totally ordered list
     of items consistent with a partial ordering of items
     mentioned in the input file.

     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.

EXAMPLES
     To build a new library from existing .o files, enter:

        ar cr library `lorder *.o | tsort`


STATUS MESSAGES AND VALUES
     Odd data: there is an odd number of fields in the input
     file.

LIMITATIONS
     Uses a quadratic algorithm; not worth fixing for the typical
     use of ordering a library archive file.

FILES
     /usr/bin/tsort
          Executable file

SEE ALSO
     lorder(1), sort(1), sortbib(1)














January 1992                                                    1