Why do you say that these commands won't work unless passed to a shell vs calling ssh directly?

Because it's obvious they have been written to be parsed by a shell.

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.

In reply to Re^5: Splitting up quoted/escaped command line arguments by salva
in thread Splitting up quoted/escaped command line arguments by Tommy

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