[Gmsh] setnumber option gone in 2.8.3?

[Florian M. Wagner]

Dear all,

I want to create sphere meshes with different radii and do some 
calculations on them from the command-line. I thought I could do 
something like

for r in 1 2 3 4 5
do
gmsh -3 -setnumber r $r -o mesh_$r.msh sphere.geo #
femcalculation mesh_$r.msh
python visualization.py
done

But the

|-setnumber name value|
    Set constant number name=value

option is not known in my version 2.8.3?

Any recommendations? Or would I need to edit the .geo file with a script?

Thanks a lot
Florian
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