bash script, erase previous line?

Question

In lots of Linux programs, like curl, wget, and anything with a progress meter, they have the bottom line constantly update, every certain amount of time. How do I do that in a

Answer 1

man terminfo(5) and look at the "cap-nam" column.

clr_eol=$(tput el)
while true
do
    printf "${clr_eol}your message here\r"
    sleep 60
done