Spawn a shell process

[Stéphane List]

Hello,

I would like to spawn the following command line:
yum list kernel-devel-$(uname -r)

When I try, it seems that "uname -r" is not transformed to 4.18.0-240....

Can I spawn a bash ? Or should I first get the result of "uname -r" in a
variable that I could concatenate to the rest of the line to have the final
result ?

Thanks for your help

[Stef Walter]

Hi Stéphane,

I believe the cockpit.script() function does what you're looking for. In
particular, variable interpolation spawning a unix shell and treating your
command line as a "script":

https://cockpit-project.org/guide/latest/cockpit-spawn.html#cockpit-spawn-sc...

Does something like this work?

var script = cockpit.script("yum list kernel-devel-$(uname -r)");

Cheers,

Stef

On Thu, Jan 28, 2021 at 12:10 PM Stéphane List 
wrote:
> Hello,
>
> I would like to spawn the following command line:
> yum list kernel-devel-$(uname -r)
>
> When I try, it seems that "uname -r" is not transformed to 4.18.0-240....
>
> Can I spawn a bash ? Or should I first get the result of "uname -r" in a
> variable that I could concatenate to the rest of the line to have the final
> result ?
>
> Thanks for your help
> _______________________________________________
> cockpit-devel mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
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[Stéphane List]

Thanks Stef,

Yes it works.

Le jeu. 28 janv. 2021 à 12:24, Stef Walter  a écrit :
> Hi Stéphane,
>
> I believe the cockpit.script() function does what you're looking for. In
> particular, variable interpolation spawning a unix shell and treating your
> command line as a "script":
>
> https://cockpit-project.org/guide/latest/cockpit-spawn.html#cockpit-spawn-sc...
>
> Does something like this work?
>
> var script = cockpit.script("yum list kernel-devel-$(uname -r)");
>
> Cheers,
>
> Stef
>
> On Thu, Jan 28, 2021 at 12:10 PM Stéphane List 
> wrote:
> > Hello,
> >
> > I would like to spawn the following command line:
> > yum list kernel-devel-$(uname -r)
> >
> > When I try, it seems that "uname -r" is not transformed to 4.18.0-240....
> >
> > Can I spawn a bash ? Or should I first get the result of "uname -r" in a
> > variable that I could concatenate to the rest of the line to have the final
> > result ?
> >
> > Thanks for your help
> > _______________________________________________
> > cockpit-devel mailing list -- [e-mail]
> > To unsubscribe send an email to
> > [e-mail]
> > Fedora Code of Conduct:
> > https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> > List Archives:
> > https://lists.fedorahosted.org/archives/list/[e-mail]...
>
> --
> Stef Walter (he / his)
> Linux Engineering
> Red Hat
> _______________________________________________
> cockpit-devel mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives:
> https://lists.fedorahosted.org/archives/list/[e-mail]...