On 7/1/20 8:48 AM, Clark Wang wrote:
> See the following example (tested with bash 5.0.7):
> 
> 
> # bind -q shell-expand-line
> shell-expand-line can be invoked via "\e\C-e".
> 
> # echo $PWD      # press ESC C-e
> # echo /root
> 
> # echo $( pwd )  # press ESC C-e
> # echo /root
> 
> # echo $'foo'    # press ESC C-e
> # echo $foo
> 
> 
> Is this a bug?

I suppose it is. $'...' isn't a word expansion, it's a form of quoting that
gets translated and transformed into '...' by the parser. When the word
expansion code sees $'...', unexpectedly, it just performs the usual quote
removal.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

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