How do I list subscripts in an array using a bash shell script?

shoebill

Two ways

Usage is ${!name[*]}

Usage is ${!name[@]}

${!name[*]} - Inside double quotes expands to one word.
${!name[@]} - Inside double quotes expands to separate words.

declare -A MyBucketList
MyBucketList=([1]="See The Grand Canyon" ["2 or 3"]="Go to Mars" [4]="Climb Mount Everest")

for i in "${!MyBucketList[*]}"
do
  echo Treat this as one word $i
done

$ ./associative_array.sh
Treat this as one word 2 or 3 1 4

Changing the for loop line 4 to:

for i in "${!MyBucketList[@]}"

then run the script again.

$ ./associative_array.sh
Treat this as one word 2 or 3
Treat this as one word 1
Treat this as one word 4