Store output of for loop into an array or variable

Question

I have a for loop as shown below. I need the whole output of the loop added into an array or variable.

for i in $ip
do
  curl -s $i:9200
done

Any idea how I can achieve that?

Answer 1

You can use it like this:

# declare an array
declare -a arr=()

for i in $ip
do
  # append each curl output into our array
  arr+=( "$(curl -s $i:9200)" )
done

# check array content
declare -p arr

It is important to use quotes around curl comment to avoid splitting words of curl command's output into multiple array entries. With quotes all of the curl output will become a single entry in the array.