I have this code in an infinite loop:
read -a output
echo ${output[@]}
When the code runs the screen might look like this:
Hello, World # line where value was given to output (I want this gone)
Hello, World # echoed output
[] # <-- cursor waiting for next input
Is there a way to clear the line where the user inputs the value? Like, as in get rid of it totally (not just changing the line to whitespace that will still leave a gap in the desired output)?
Use tput with the cuu1 and dl1 capabilities.
echo "foobar42"
echo "$(tput cuu1)$(tput dl1)baz123"
el (erase to end of line) instead of dl1 (delete line) since the latter will cause text below that line to scroll up. Also, it's not necessary to echo the output of tput using command substitution. tput cuu1; tput cr; tput el; echo baz123 (the cr ensures that you're at the beginning of the line)
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.
