Shift elements of matrix N times (MATLAB)

I have a parameter m and an identity matrix of dimensions m-1*m-1

for example: m=4 so the identity matrix is 3*3

a1=[1 0 0

0 1 0

0 0 1]

I want to shift this matrix m-2 times, to obtain :

a2=[0 1 0

0 0 1

1 0 0]

h3=[0 0 1

1 0 0

0 1 0]

In this case I can use this program:

m=4;
for i=1:m
    a1=eye(m-1,m-1);
    a2=circshift(h1,[0 1]);
    a3=circshift(h2,[0 1]);
end

How can I program that in a general way please (in case if m=100 for example) !

Answer 1

[David Hill]

a=circshift(eye(m-1),m-2,2);

[high speed]

@David Hill In this case I don't get the result that I want.

I got just:

a=[0 0 1

1 0 0

0 1 0]

[David Hill]

I did not understand that you wanted to save all of the matrices. Below saves all the matrices into a single 3D matrix for any m.

a=zeros(m-1,m-1,m-2);
a(:,:,1)=eye(m-1);
for k=2:m-2
  a(:,:,k)=circshift(a(:,:,k-1),1,2)
end