Re: Is there a good way to tell the difference between a variable declared in a function then a variable declared outside a function?

[Marco Ippolito]

On 30/08/2020 01:18, Peng Yu wrote:
> Hi,
>
> `declare -p` can tell whether a variable is declared. But it can not
> tell whether the variable is declared with the current function or
> outside the current function. Is there a way to do so? Thanks.

If it appears when executing "local", it was defined in the current 
function.

~~~~~~~
Reference: local

With no operands, local writes a list of local variables to the standard 
output.  It is an error to use local when  not  within  a  function.
~~~~~~~

Specifically, it foo was defined as a local in func1 and func1 calls 
func2, "$foo" will be "usable" in func2 but foo will not appear when you 
execute "local" from inside func2.

What is your use case for this question, please?

Marco Ippolito
maroloccio@gmail.com