Question

The command elb-describe-instance-health returns the following

INSTANCE_ID  i-111
INSTANCE_ID  i-222
INSTANCE_ID  i-333

$(elb-describe-instance-health | awk '/INSTANCE_ID/{print $2}')

returns i-111 i-222 i-3333

How can I change the above syntax to store each of these values in an array (ex. foo[0] equals i-111, foo[1] equals i-222, foo[2] equals i-333?

Answer 1

Here’s one way:

array=($(elb-describe-instance-health | awk '/INSTANCE_ID/ { print $2 }'))

Then simply echo the element you want. To echo the first element for example, try:

echo "${array[0]}"