time.myself.doing.something.bash

#!/bin/bash


finished()
{
    echo -e "\n\nDone!"
    exit $?
}
trap finished SIGINT



interrupt()
{
    echo -e "\n\nSomething went wrong."
    exit $?
}
trap interrupt SIGKILL SIGTERM







#main program
echo -e "Begin.\n\n"

for minute in {1..15}
do
    echo -n $minute

    for seconds in {1..12}
    do
	sleep 5
	echo -n '. '
    done

    echo "\n"
done