[Edit]

Bash - create array

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Created by:

Teilsa

1315

This article, we would like to show you how to create an array in Bash.

There are several ways to create an array in Bash:

by using array syntax:

xxxxxxxxxx
 
#!/bin/bash
​
array=(1 two 'third value' "fourth value")

or:

xxxxxxxxxx
 
#!/bin/bash
​
array=(
    1
    two
    'three'
    "four"
)

by using declare command:

xxxxxxxxxx
 
#!/bin/bash
​
declare -a array=(1 two 'third value' "fourth value")

by assigning single values:
xxxxxxxxxx

1
#!/bin/bash
2

3
array[0]=1
4
array[1]=two
5
array[2]='third value'
6
array[3]="fourth value"
Note: when we try to assign values to non-existing array the array is created automatically.

Usage example

Edit

xxxxxxxxxx
 
#!/bin/bash
​
array=(1 two 'third value' "fourth value")
​
for i in "${array[@]}"
do
    echo "$i"
done

Output:

xxxxxxxxxx
 
1
two
third value
fourth value

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