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lang-bash
/dev/random?echo $RANDOM? (unless you want to focus more on code than result)/dev/urandomrather than/dev/randoma=$(($(date +%s%N)/1000000))works for me, what problem do you have with it?$((ns / 1000000)), you drop off the six rightmost digits, that is the micro- and nanoseconds, leaving a millisecond timestamp, which isn't that random. E.g. if we look at the output you have, the three last digits alternate between2xxand7xxfor a while until it drifts to3xxand8xx. You could use$(( ns % 1000000 ))to take the remainder instead, keeping the six lowest-order digits, but then the clock granularity might not be good enough for all of those to be meaningful either.