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Re^5: Generic Broadcast SSH Launcher

by salva (Abbot)
on Nov 19, 2013 at 11:31 UTC ( #1063314=note: print w/ replies, xml ) Need Help??


in reply to Re^4: Generic Broadcast SSH Launcher
in thread Generic Broadcast SSH Launcher

A pipe can be attached to the output stream:

$pssh->push('*', 'command', { stderr_to_stdout => 1, stdout_file => ['|-', 'perl', '-ne', 'pr +int "%HOST%$_\n"'] }, $cmd );
Or the more efficient:
require POSIX; my %fh; for my $host (@hosts) { my $pid = open my $fh, '|-'; if (not $pid) { while (<>) { print "$host) $_"; } POSIX::_exit(0); } $fh{$host} = $fh; $pssh->add_host($host, default_stderr_fh => $fh, default_stdout_fh = +> $fh); } $pssh->push('*', 'command', $cmd ); $pssh->run; close $_ for values %fh;
Note that lines comming from stderr and stdout may arrive intermixed. A more correct solution would be to use different filters for stderr and stdout.


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