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  • If you quote when echoing, it shows new lines but with trailing slash: echo "$num". Commented Feb 28, 2014 at 14:42
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    If find cat -A a good intermediate for looking at this kind of thing before going to hexdump or the like. Eg echo 6^6^3 | bc | cat -A. Commented Feb 28, 2014 at 14:45
  • @fedorqui : Interesting, since that seems to be a further interpolation -- I've added a last paragraph about this. Commented Feb 28, 2014 at 14:50
  • In general, quoting while echoing is important to keep the original format. Hence, you have to trust the quoted echo when working with some text. Commented Feb 28, 2014 at 14:52
  • @fedorqui : Right, my "last paragraph" was actually a little confused on that -- of course it isn't really a "further interpolation". Did not know about this aspect of quotes vs. non-quotes, tho. Do you know of anywhere that stipulates all the transformations that occur? Commented Feb 28, 2014 at 14:56