Re: string substitution broken since 5.2

[Chet Ramey]

On 11/3/22 1:32 PM, thierryb--- via Bug reports for the GNU Bourne Again 
SHell wrote:

> Bash Version: 5.2
> Patch Level: 2
> Release Status: release
>
> Description:
>         String substitution code running for years is broken in 5.2.
>
> Repeat-By:
>         string = 'xdotool type "sudo apt update"'
>         string="${string//\"/"}"
>         printf '%s' "$string"
>
>         previously outputs:
>         xdotool type "sudo apt update"
>
>         but now outputs:
>         xdotool type "quot;sudo apt update"quot;

From NEWS:

x. New shell option: patsub_replacement. When enabled, a `&' in the replacement
   string of the pattern substitution expansion is replaced by the portion of
   the string that matched the pattern. Backslash will escape the `&' and
   insert a literal `&'.

The option is enabled by default. If you want to restore the previous
behavior, add `shopt -u patsub_replacement'.

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