Bash for password creation | cracking

#Script 1: edit "user" with target to create alphanumerical combos

#!/bin/bash

for i in {0..9}; do
   for j in {0..9}; do
      for k in {0..9}; do
         echo "user$i$j$k" >> password.txt
      done         
   done
done

#Script2:custom URL generator for fuzzing, a bit crude but does the trick

#!/bin/bash

for i in {tokyo,beijing,newyork,rome,bangkok,osaka}; do
   for j in {0..9}; do
      for k in {0..9}; do
         echo "http://example/com/$i/$j/$k" >> password.txt
      done
   done
done