Shell Programming and Scripting

    animals="${animals["${i}"]}";

[work@shell ~]$ ./loop.sh
./loop.sh: line 17: typeset: -n: invalid option
typeset: usage: typeset [-aAfFgilrtux] [-p] name[=value] ...
0
dog, animals
orange, fruits
juice, drinks
toronto, cities
canada, countries
1
dog,
orange,
juice,
toronto,
canada,
2
dog,
orange,
juice,
toronto,
canada,
3
dog,
orange,
juice,
toronto,
canada,
4
dog,
orange,
juice,
toronto,
canada,
[work@shell ~]$ bash --version
GNU bash, version 4.2.46(1)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

#!/bin/sh

declare -a index=(0 1 2 3 4);

declare -a animals=(dog cat horse penguin cow);

declare -a fruits=(orange apple grapes peach mango);

declare -a drinks=(juice milk coffee tea coke);

declare -a cities=(toronto paris london glasgow sydney);

declare -a countries=(canada france england scotland australia);

declare -a all=(animals fruits drinks cities countries);

typeset -n j

for i in "${index[@]}" ; do
  echo ${i};
  for j in "${all[@]}" ; do
    echo ${!j}, ${j[$i]};
  done;
done

[abc@xyz ~]$ which bash
/usr/bin/bash
[abc@xyz ~]$ whereis bash
bash: /usr/bin/bash /usr/share/man/man1/bash.1.gz
[abc@xyz ~]$ echo $PATH
/usr/local/bin:/usr/bin
[abc@xyz ~]$ locate bash
/usr/bin/bash
/usr/bin/bashbug
/usr/bin/bashbug-64
/usr/share/doc/bash-4.2.46
[abc@xyz ~]$

typeset array[1]="1-1:1-2:1-3"
typeset array[2]="2-1:2-2:2-3"
typeset array[3]="3-1:3-2:3-3"

typeset -i i=1
typeset -i j=1

# display row-wise
for i in 1 2 3 ; do
     for j in 1 2 3 ; do
          echo "${array[$i]}" | cut -d':' -f $j
     done
done

# display column-wise
for i in 1 2 3 ; do
     for j in 1 2 3 ; do
          echo "${array[$j]}" | cut -d':' -f $i
     done
done