apt install mailutils

random-string()
{
    cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-32000} | head -n 1
}



random-string2()
{
    cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-32} | head -n 1
}



for ii in `seq 1 250`;
do

        num=$((200 + RANDOM % 100));
        echo $num;
        for i in `seq 1 $num; `;
        do
                a=$(random-string);
                echo $a > test
                mail -s $(random-string2) test@lab2.tuke.sk < test
        done

sleep $[ ( $RANDOM % 5 )  + 10 ]s
echo "iteracia" $ii;
done

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