Save workspace output to a file, part 2

Suppose I have a code as follows

    a=1;
    fprintf('value of a is %f \n',a)
    b=2;
    fprintf('value of b is %f \n',b)

Then I have

value of a is 1.000000 
value of b is 2.000000

on the command window. I would like to have something in the script that would save these two sentences in a text file. Please advise the steps.

[Stephen23]

duplicate:

https://www.mathworks.com/matlabcentral/answers/403436-save-workspace-output-to-a-file

[alpedhuez]

Not exactly. It is not about saving variables in the workplace.