You very clearly need to spend some time with a MATLAB manual or tutorial. You are asking a basic question, that would be covered at the very beginning of any such document.
What does temp1(90) do? Answer: it extracts element 90 of the vector.
What would temp1(91) do? Answer: it extracts element 91 of the vector. Etc.
What would temp1(90:93) do? Answer: It extracts elements [90 91 92 93] from the vector.
What would temp1(90:end) do? Answer: It extracts all the elements from #90 to the very end of the vector.
So it extracted the 5th element, up to the very last element.
So the first 4 elements of the vector.
Now, how can we combine parts of vectors into a new vector? We use the square brackets, thus .
temp2 = [temp1(5:end) ,temp1(1:4)]
Now go back and look at your question. How did this rearrange the elements of our example vector? What would it do in your problem?
And then go back and read the help documents for MATLAB. I suggest the MATLAB Onramp tutorials. But you can also find guided tutorials on YouTube.