Thank you so much for replying. My code is:
awk '{
p4=$4/1024/1024/1024; p5=$5/1024/1024/1024; 14="G";
if (p4 > 1024) {p4=p4/1024;14="T";}; if (p5 > 1024) {p5=p5/1024/1024;15="T";}
printf "%s %s %s %.2f%s %.2f%s %.1f\n",$1,$2,$3,p4,14,p5,15,$6;}'$HOME/input_file_foo
I...