Re: Possible problem with ${var%%[...]*}

[Greg Wooledge]

On Mon, Apr 03, 2023 at 12:28:25AM +0700, Robert Elz wrote:
> bash is parsing the <() as a process substitution, producing nothing.
> The only chars in the bracket expression will then be . and [ which
> explains the result.

That does seem like a bug, to be fair.

> Try instead
> 
>       bash        -c 'option2="test{<().["; echo "${option2%%[\<().[]*}"'
> 
> and you'll see the difference.   That form should work for all shells.

Or move the < to a different position.