stopwatch

#!/usr/bin/env bash
#
# ############################################################################
# Project: scripts (none)
# File...: stopwatch
# Created: Saturday, 2020/02/01 - 03:04:59
# Author.: @fbnmtz, (fabiano.matoz@gmail.com)
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# Last Modified: Tuesday, 2023/09/19 - 01:06:28
# Modified By..: @fbnmtz, (fabiano.matoz@gmail.com)
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# Version: 0.0.1.5
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# Description: 
#  >
# ############################################################################
# HISTORY:
#

if [ -z $1 ]; then
  date1=`date +%s`;
else
  date1=$(date --date=$1 +%s)
fi 
while true; do 
  days=$(( $(($(date +%s) - date1)) / 86400 ))
  echo -ne "$days day(s) and $(date -u --date @$((`date +%s` - $date1)) +%H:%M:%S)\r";
  sleep 0.1
done