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                the number of processes called at once.
                Note without --interleave you wont see results until the each
                server has completed so that results are groupped.
  -i --interleave
                When running parallel commands interleave the output of each host
     --no-interleave
                Turn off --fork interleaving of output (the default)
  -t --test     Just show all the commands that would be run don't actually
                run anything
  -f --fork     Fork the ssh processes so they run in parallel, output may
                not be legible. (Equivalent of --parallel=4 --interleave)
  -s --script[=]str
                Hmmm what's this
  -c --cssh     Use cssh to run the ssh commands
     --cssh-cmd[=]str
                Use str as the C<cssh> program (defaults to cssh found in $PATH)
  -m --tmux     Create a tmux session with each window pane connecting to a host
     --tmux-cmd[=]str
                Use str as the C<tmux> program (defaults to tmux found in $PATH)
  -n --tmux-nested
                Use this fag when running in an existing tmux session to split up
                the current tmux window in the same fashion as running a sepperate
                tmux session.
     --tmux-sync
     --sync     Turn on TMUX synchronize pages
     --no-sync  Turn off TMUX synchronize pages (Default)
  -o --only-hosts
                No command passed (all arguments are hosts)

  -v --verbose  Show more detailed option
     --VERSION  Prints the version information
     --help     Prints this help information
     --man      Prints the full documentation for mssh

=head1 DESCRIPTION

=head2 Groups

You can configure host name groups in ~/.mssh (a YAML formatted file)

    ---
    groups:
        prod: myhost0[1-9].prod
        dev:
            - myhost0[1-4].dev
            - myhost0[1-4].test

This can save some effort with commonly used groups of hosts. The argument
I<--group> adds any configured hosts to any specified host names.

=head1 SUBROUTINES/METHODS

=head1 DIAGNOSTICS

=head1 CONFIGURATION AND ENVIRONMENT

=head1 DEPENDENCIES

=head1 INCOMPATIBILITIES

=head1 BUGS AND LIMITATIONS

There are no known bugs in this module.

Please report problems to Ivan Wills (ivan.wills@gmail.com).

Patches are welcome.

=head1 AUTHOR

Ivan Wills - (ivan.wills@gmail.com)

=head1 LICENSE AND COPYRIGHT

Copyright (c) 2012 Ivan Wills (14 Mullion Close, Hornsby Heights, NSW 2077).
All rights reserved.

This module is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See L<perlartistic>.  This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

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