tsort - perform topological sort

       Written by Mark Kettenis.

       Copyright  ©  2024  Free  Software  Foundation,  Inc.   License  GPLv3+:  GNU  GPL  version  3  or  later
       <https://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.

       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

       tsort - perform topological sort

       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to <https://translationproject.org/team/>

       Full documentation <https://www.gnu.org/software/coreutils/tsort>
       or available locally via: info '(coreutils) tsort invocation'

GNU coreutils 9.5                                  April 2025                                           TSORT(1)

tsort [OPTION] [FILE]