Print a random number between 0 and 100 (with two decimal places):
echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo "$(rand()*100)"|bc -l))|tr -d "\n"))|sed "s/.\{2\}$//"))|tr -d ".0"))|rev)|sed 's/\([0-9]\{3\}\)/\1,/g'|rev|sed 's/,$//')"|bc -l
awk 'BEGIN{srand();n=rand()*100;print "echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo $(echo "$n"|bc -l))|tr -d "\n"))|sed "s/.\{2\}$//"))|tr -d ".0"))|rev)|sed 's/\([0-9]\{3\}\)/\1,/g'|rev|sed 's/,$//')"|bc -l'