ngspice/examples/loops/loop_repeat.cir

example repeat loop
.control
* plain number
repeat 3
  echo How many loops? Count yourself!
end
echo
* variable
set loops = 7
repeat $loops
  echo How many loops? $loops
end
echo
* vector
let loopvec = 4
repeat $&loopvec
  echo How many loops? $&loopvec
end

.endc

.end