Add an argument to show stopwatch in the line

[rominf]

I expect termdown to do this thing:

$ termdown --no-figlet --line
0

[lasers]

(Suggestion) Use shell alias/script instead.

date1=`date +%s`; while true; do 
   echo -ne "$(date -u --date @$((`date +%s` - $date1)) +%H:%M:%S)\r";
done

Source: https://superuser.com/questions/611538/is-there-a-way-to-display-a-countdown-or-stopwatch-timer-in-a-terminal