[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: expression evaluation problem
|
From: |
Greg Wooledge |
|
Subject: |
Re: expression evaluation problem |
|
Date: |
Thu, 25 Jul 2019 13:34:08 -0400 |
|
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Thu, Jul 25, 2019 at 10:29:08AM -0700, L A Walsh wrote:
> On 2019/07/24 11:49, Greg Wooledge wrote:
> > $((expression))
> >
> > The expression is treated as if it were within double quotes,
> I didn't use $((...)), I'd put the whole thing in ((...)) which I hoped
> would treat the whole expression consistently.
((expression))
The expression is evaluated according to the rules described be‐
low under ARITHMETIC EVALUATION.
[...]
ARITHMETIC EVALUATION
[...]
Shell variables are allowed as operands; parameter expansion is per‐
formed before the expression is evaluated.