#!/bin/bash for i in 1 2 3 4 5 6 7 8 9 0 a b c d e f g h i j k l m n o p q r s t u v w x y z ; do mkdir $i chmod 777 $i cd $i for j in 1 2 3 4 5 6 7 8 9 0 a b c d e f g h i j k l m n o p q r s t u v w x y z ; do mkdir $j chmod 777 $j cd $j for k in 1 2 3 4 5 6 7 8 9 0 a b c d e f g h i j k l m n o p q r s t u v w x y z ; do mkdir $k ; chmod 777 $k; echo "Processing $i/$j/$k" done cd .. done cd .. done