Copy a Bash array with empty elements
You have a quoting problem and you should be using @, not *. Use:
copy=( "${array[@]}" )From the bash(1) man page:
Any element of an array may be referenced using
${name[subscript]}. The braces are required to avoid conflicts with pathname expansion. Ifsubscriptis@or*, the word expands to all members ofname. These subscripts differ only when the word appears within double quotes. If the word is double-quoted,${name[*]}expands to a single word with the value of each array member separated by the first character of theIFSspecial variable, and${name[@]}expands each element ofnameto a separate word.
Example output after that change:
--- array (3) ---onethree--- copy (3) ---onethree