Re: which paradigms does bash support

[Pierre Gaston]

On Mon, Jan 26, 2015 at 6:05 PM, Pádraig Brady <P@draigbrady.com> wrote:

> On 26/01/15 13:43, Greg Wooledge wrote:
> > On Sun, Jan 25, 2015 at 08:11:41PM -0800, garegin16@gmail.com wrote:
> >> As a programming language which paradigms does bash support.
> Declarative, procedural, imperative?
> >
> > This belongs on help-bash@gnu.org so I'm Cc'ing that address.
> >
> > Shell scripts are procedural.
>
> It should be noted that shell programming is closely related to functional
> programming.
> I.E. functional programming maintains no external state and provides
> data flow synchronisation in the language.  This maps closely to the
> UNIX filter idea; data flows in and out, with no side affects to the
> system.
>
> By trying to use filters and pipes instead of procedural shell statements,
> you get the advantage of using compiled code, and implicit multicore
> support etc.
>
> cheers,
> Pádraig.
>

Though I understand what you say and maybe you can see pipes as something
functional(ish),
I believe this is a misleading statement as imo shell scripting is not even
close to be functional in any kind of way.