command line counter tool to replace "sleep"
 

I am looking for a command line tool which will replace sleep command, I want it to show the countdown in command line. I am curious about how much time is left.

Why don't you write a shell script to do the job
Something like that would do what you wanted and you could customize it to have the exact output you want.

#!/bin/bash

for ((i=100;i>0;i--));
do
echo $i
sleep 1
done

Thanks, I'll do it.