[root@VM197 xxxxx]# cat isPrime.csh
set n = 100

set sum = 0
set i = 2
while($i <= $n)
  set isPrime = 1
  set j = 2
  while($j < $i)
    if($i % $j == 0) then
      set isPrime = 0
      break
    endif
    @ j = $j + 1
  end
  if($isPrime == 1) then
    echo -n $i,
    @ sum = $sum + $i
  endif
  @ i = $i + 1
end
echo $sum





[root@VM197 xxxxx]# csh isPrime.csh
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,1060