I just spent the last two hours running a `dd` command *(or picture any similar "difficult to re-do" scenario)* from a live CD without a GUI; all I have is my trusty "multi-window" (`CTRL+ALT+F#`) Bash terminal. 

Alas, during the command `dd` threw out several nasty error messages and a bit more information that I would like to keep. I have a USB drive plugged in to which I can write data, but how do I get the previous output saved as a text file after the command has already been run?

If this had been a terminal emulator inside a nice GUI, I would have simply used my mouse to select the text, copy it, and paste it into a document. And had I known the command would have produced errors, I would have piped it out to a file to begin with, but alas, the additional output came as a surprise.

**How do I save text output from my previous command to a file without re-running the command?** Is this even possible?