Arrays in unix shell?

arrays bash shell unix
Arunachalam picture Arunachalam · Dec 10, 2009 · Viewed 262.7k times · Source

How do I create an array in unix shell scripting?

Answer

Vincent Agami picture Vincent Agami · Sep 19, 2013

The following code creates and prints an array of strings in shell:

#!/bin/bash
array=("A" "B" "ElementC" "ElementE")
for element in "${array[@]}"
do
    echo "$element"
done

echo
echo "Number of elements: ${#array[@]}"
echo
echo "${array[@]}"

Result:

A
B
ElementC
ElementE

Number of elements: 4

A B ElementC ElementE

Related questions

Loop through an array of strings in Bash?

I want to write a script that loops through 15 strings (array possibly?) Is that possible? Something like: for databaseName in listOfNames then # Do something end

Read More
Reading a delimited string into an array in Bash

I have a variable which contains a space-delimited string: line="1 1.50 string" I want to split that string with space as a delimiter and store the result in an array, so that the following: echo ${arr[0]} echo ${arr[1]} echo ${arr[2]} outputs 1 1.50 …

Read More
Multi-dimensional arrays in Bash

I am planning a script to manage some pieces of my Linux systems and am at the point of deciding if I want to use bash or python. I would prefer to do this as a Bash script simply because …

Read More