AeonFelis , 3 hours ago

I just use this:

<span style="color:#323232;">#!/bin/bash
</span><span style="color:#323232;">
</span><span style="color:#323232;">keep_generating=1
</span><span style="color:#323232;">while [[ $keep_generating == 1 ]]; do
</span><span style="color:#323232;">    dd if=/dev/random of=$1 bs=1 count=$2 status=none
</span><span style="color:#323232;">    echo Contents of $1 are:
</span><span style="color:#323232;">    cat $1
</span><span style="color:#323232;">    echo
</span><span style="color:#323232;">    read -p "Try generating again? " -s -n1 answer
</span><span style="color:#323232;">    while true; do
</span><span style="color:#323232;">        case $answer in
</span><span style="color:#323232;">            [Yy] )
</span><span style="color:#323232;">                echo
</span><span style="color:#323232;">                break
</span><span style="color:#323232;">                ;;
</span><span style="color:#323232;">            [Nn] )
</span><span style="color:#323232;">                keep_generating=0
</span><span style="color:#323232;">                break
</span><span style="color:#323232;">                ;;
</span><span style="color:#323232;">            *)
</span><span style="color:#323232;">        esac
</span><span style="color:#323232;">        read -s -n1 answer
</span><span style="color:#323232;">    done
</span><span style="color:#323232;">done
</span>