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Re: Net::OpenSSH changing directory does not work properly

by keszler (Priest)
on Dec 07, 2011 at 10:53 UTC ( #942212=note: print w/ replies, xml ) Need Help??


in reply to Net::OpenSSH changing directory does not work properly

Net::SSH2, unlike Net::OpenSSH, provides a 'shell' method for a persistent connection allowing multiple commands. See A little demo for Net::SSH2 for an example.


Comment on Re: Net::OpenSSH changing directory does not work properly
Re^2: Net::OpenSSH changing directory does not work properly
by salva (Monsignor) on Dec 07, 2011 at 11:04 UTC
    Net::OpenSSH does also support running a remote shell and it even allows to use Expect to interact with it.

    But in my opinion, talking to a shell is harder and less reliable than running simple commands even if they have to be prepended with cd $path && ....

      Aha - I overlooked $ssh->open2pty. Thank you.

      I agree that for a handful of serial-dependent commands the shell overhead is excessive, but at some point I believe it becomes worthwhile.

        Actually, all the methods of Net::OpenSSH support running a shell, even if it doesn't make sense for several of them.

        Just, don't pass a command argument and you get a shell. For instance:

        $out = $ssh->capture({stdin_data => <<EOS}); ls foo this foo that rm -R / EOS # or... ($socket, $pid) = $ssh->open2socket; print $socket "ls\n"; while (<$socket>) { print }; waitpid($pid, 0);

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