Linux Bash Script - Yes or No - read answer

little script #!/bin/sh cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 24 | head -n 4 printf 'do you like this? (y/n)? ' read answer if [ "$answer" != "${answer#[Yy]}" ] ;then echo Yes else echo No goto?!? jumpto?!? urandom line fi it reads from urandom and ask if this ok, if yes the script end. if not yes, i will read and ask again - how to do this? do i need goto? or jumpto or anything other?