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salva
<blockquote><i>Why do you say that these commands won't work unless passed to a shell vs calling ssh directly?</i></blockquote>
<p>Because it's obvious they have been written to be parsed by a shell.
<p>Can you assure that there would be no entries using redirections, pipes, back-quotes, logical operators, variables, wildcards, etc.? Those are features that any intermediate shell user employs frequently.
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