Implement in shell scripts

bash/soe-bash

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+read num
+echo
+
+nums=()
+for i in `seq 2 $num`; do
+    nums+=($i)
+done
+
+while [ -n "$nums" ]; do
+    prime=${nums[0]}
+    echo $prime
+    nums_=()
+    for elem in "${nums[@]}"; do
+        [ $(( $elem % $prime )) -eq 0 ] || nums_+=($elem)
+    done
+    nums=(${nums_[@]})
+done