Shell Programming and Scripting

#!/bin/bash
while true;
do 
	clear; 
	date | 
	awk '{print $4}' | 
	awk -F ":" '{print substr($1,0,1) "\t" substr($1,2,1) "\n" substr($2,0,1) "\t" substr($2,2,1 )"\n" substr($3,0,1) "\t" substr($3,2,1) }' ; 
	sleep 1; 
done

echo 'obase=2;<digit>' | bc

#!/bin/bash
while true;
do
        clear;
        date |
        awk '{print $4}' |
        awk -F ":" '{print substr($1,0,1) "\t" substr($1,2,1) "\n" substr($2,0,1) "\t" substr($2,2,1 )"\n" substr($3,0,1) "\t" substr($3,2,1) }' | while read a b;do
          a=`echo "obase=2;$a" | bc`
          b=`echo "obase=2;$b" | bc`
          printf "%04d\t%04d\n" $a $b
        done
        sleep 1;
done

"%04d\t%04d\n"

a='echo "obase=2;$a" | bc'

a=`echo "obase=2;$a" | bc`

CLS=$(clear)
while true
do
  echo $CLS `date +%H%M%S | awk '
  BEGIN{split("0000,0001,0010,0011,0100,0101,0110,0111,1000,1001,1010",bin,",") }
  {for(i=1;i<7;i++) printf bin[substr($1,i,1)+1]" ";}'`
  sleep 1
done