Re: [Help-bash] How to print a bash variable in the most succinct way?

[Chris F.A. Johnson]

On Tue, 16 Aug 2016, Peng Yu wrote:

> On Tue, Aug 16, 2016 at 2:56 PM, Chet Ramey <address@hidden> wrote:
> > On 8/16/16 3:21 PM, Peng Yu wrote:
> >
> > > How to only generate variables that are modifiable (i.e., not readonly)?
> >
> > Generate a list of all variables.  Generate a list of readonly variables.
> > Do a diff.
>
> How to generate a list of the names of the readonly variables?
> `readonly` will print both the names and their values. I will run into
> the same problem when there are $'\n' in their values.

readonly -p| awk -F "[= ]" '/^declare/ {print $3}'

--
Chris F.A. Johnson, <http://cfajohnson.com>