How does one clear user input in Bash when using 'read'?

I have this code in an infinite loop:

read -a output
echo ${output[@]}

When the code runs the screen might look like this:

Hello, World # line where value was given to output开发者_运维技巧 (I want this gone)
Hello, World # echoed output
[] # <-- cursor waiting for next input

Is there a way to clear the line where the user inputs the value? Like, as in get rid of it totally (not just changing the line to whitespace that will still leave a gap in the desired output)?

Use tput with the cuu1 and dl1 capabilities.

echo "foobar42"
echo "$(tput cuu1)$(tput dl1)baz123"

Why not just remove the echo ${output[@]}? Since you're not quoting your array variable, this seems to be the same result as if you were to use tput hax.