Unit convertion wih awk

I needed a simple unit converter to change number to kilo, mega and giga to I went looking and found some large complex code and decided I could make it so must smaller.

This will convert your number to a human readable value.

Try this with it.
for i in $(seq 1 1 64); do echo -n "$(echo "2^$i"|bc) =  "; echo "2^$i"|bc|awk -f convert.awk; done

{
 S=$1;
 Us=" kMGTPEZY";
 U="";
 i=2;
 while(S>1024){
  S/=1024;
  U=substr(Us,i,1);
  i++;  
 };
 printf "%0.0f%sb\n", S, U
}