Bash: execute a command with quotes and put its output into a variable

Question

In a bash script I set a command this way:

getdblist_cmd=(sudo -u $backup_user $psql -p $pgsql_port -U $pgsql_user -d postgres -q -t -c 'SELECT datname from pg_database')

Then I run it with

dblist=`${getdblist_cmd[@]}`

I don't get any error into the bash script but the $dblist variable is empty.

How can I execute that command and put its output into a variable?

Answer 1

dblist=`"${getdblist_cmd[@]}"`
        ^                   ^

The [@] operator works only correct if the ${...} is surrounded by quotes.