Bash (Scripting) - Append values to an array (+=)

If you are not familiar with arrays, check out our article Getting Started with Arrays in Bash Shell Scripting.

Let's say you have an array of fruit.

fruit=(banana apple orange grapes)

 

The += operator can be used to append values to the array. In this example, pineapple is appended to the fruit array.

fruit+=(pineapple)

 

Here is how to print every element in the array.

echo ${food[*]}

 

Which should return the following.

apple banana orange grapes pineapple

 

Or, a for loop can be used to iterate over each item in the array, like this.

for item in ${fruit[@]}; do
  echo $item
done

 

Which should return the following.

apple
banana
orange
grape
pineapple

 



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Comments


July 24th, 2020 by Robin A. Meade
echo "$fruit" # prints the first element of the array printf '%s\n' "${fruit[@]}" # prints each element on its own line IFS=',' echo "${fruit[*]}" # prints comma separated values IFS=$' \t\n' # Restores IFS to its default value

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