A simple YAD (Yet another Dialog) Time and Date bash script

yadtime.sh

#!/bin/bash

# Pipe
while true
 do 
   echo "1:#$(date '+%T')"
   echo "1:$(date '+%1S')"
   echo "2:#$(date '+%D %a')"
   echo "2:$((60-$(date '+%1S')))"
   sleep 1
 done | yad --progress --title="Time" --bar="Time":NORM --bar="Date":NORM
 
#-------------------------------

# Coprocess
coproc yad --progress --title="Time" --bar="Time":NORM --bar="Date":NORM
 
exec >&${COPROC[1]}

i=1
while ((i<=11))
 do
   seconds=$(date '+%1S')
   echo "1:#$(date '+%T')"
   echo "1:${seconds}"
   echo "2:#$(date '+%D %a')"
   echo "2:$((60-$seconds))"
   sleep 1
   ((i=i+1))
 done

kill $COPROC_PID

exit