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-script

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 <stephane.list@gmail.com> 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
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--
Stef Walter (he / his)
Linux Engineering
Red Hat