When you execute a shell command in Terminal in OS X, (in appropriate cases) you get text back as the command executes. For example, when searching a hard drive, even though the entire process takes a while, at each moment it finds a matching file, it echoes it to the terminal, so you get a little feedback while you're waiting.

However, in Revolution, when I execute a shell command, nothing is returned until the entire command is finishing executing, at which point I get all the echoed text at once.

I am brand new at this and probably missing something obvious... how do you set up a callback so you get the echoed text in "real time"?
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