> maybe I do not fully follow your example, but wouldn't you instead of:
>
> time D="${C//\[+([0-9])\]=}" # rm '[]='
>
> want:
>
> time D="${C//\[[0-9]*\]=}" # rm '[]='
this would also find [!asd]. And there are other possibilities.
but that was not
Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='b
