move shell scripts and zsh and add fav vscode themes

shell/shell_scripts/lessons/arguments.ssh

@@ -0,0 +1,15 @@
+#! /bin/bash
+# script to test for loop and arguments
+
+if [ $# -eq 0 ]
+  then
+  echo "Error - Number missing form command line argument"
+  echo "Syntax : $0 number"
+  echo "Use to print multiplication table for given number"
+  exit 1
+fi
+n=$1
+for i in 1 2 3 4 5 6 7 8 9 10
+do
+  echo "$n * $i = `expr $i \* $n`"
+done