That one is new to me. So a quoted or escaped space is no longer a word delimiter. Yeah ... that's why in typeset, any naked space is a delimiter, even a dozen of them make no difference, they are 'just' delimiters. Yup, this kind of thing won't catch me again.... That means all of these assignments store exactly the same thing in the variable x:
x=this\ is\ all\ one\ word
The ability to mix and match gives us the old way to get an apostrophe into an otherwise-single-quoted string: to close the quotes, add a backslashed apostrophe, and then go back into quotes:x="this is all one word"x='this is all one word'x=$'this is all one word'x=this\ is' 'all" "one$' 'word
x='That'\''s all, folks!'
Yes, that's clear.But it's easier to just use ANSI quotes:
x=$'That\'s all, folks!'