How to save workspace except for one structure field?

I want to save the workspace except for a variable and a field in a structure.

I know i can do this to not save a variable, but i want to also not save struct.field

    save('Workspace.mat','-regexp','^(?!(VariableName)$).');

Answer 1

[pietro]

Probably there is a shorter way to do it, but this method works:

    a=1;
    b=1;
    c=1;
    vars=who;
    p=find(ismember(vars,'b')==0)
    for i=1:length(p)
        save('prova.mat',char(vars(p(i))));
    end