Re: declare -g reports as invalid option on MacOS (10.14.6) Bash (5.0.11)

[Greg Wooledge]

On Fri, Aug 30, 2019 at 06:03:37PM -0600, Ray Sutton wrote:
> The issue is on a late 2013 MBP running MacOS 10.14.6 and 
> bash -version reports 5.0.11(1)-release (x86-64-apple-darwin18.6.0)
> 
> The error is occuring in my .bash_profile and reports as
> 
> -bash: declare: -g: invalid option

You probably have multiple versions of bash installed.  One of them,
which you invoked by typing "bash -version" from a command shell, is
version 5.0.11.

The other, which is your login shell as used by your terminal emulator,
is very likely bash 3.2.

> The behavior seems consistent with the original bash 3 declare
> statement persisting after the bash 5 install which seems unlikely.

Yup.  Your login shell is still pointing to the original bash, not the
other bash.