add random stuffs

untitled_script.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+while IFS= read -r line; do
+    row=""
+    for (( i=0; i<${#line}; i++ )); do
+        char="${line:i:1}"
+        row+="$char$char"
+    done
+    echo "$row"
+    echo "$row"
+done