On Sunday, September 21, 2025, Gioele Barabucci <[email protected]> wrote: > > +The old format \fB$[\fP\fIexpression\fP\fB]\fP is deprecated and will > +be removed in upcoming versions of bash. >
That's not true though, both bash and zsh still support it and neither party plan to remove it. It's better left undocumented -- Oğuz
