tsort(1) perform topological sort

SYNOPSIS

tsort [,OPTION/] [,FILE/]

DESCRIPTION

Write totally ordered list consistent with the partial ordering in FILE.

With no FILE, or when FILE is -, read standard input.

--help
display this help and exit
--version
output version information and exit

AUTHOR

Written by Mark Kettenis.

COPYRIGHT

Copyright © 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.