Generate a random number in a range

START=20; END=50 echo $(($START+(`od -An -N2 -i /dev/random`)%($END-$START+1)))
This commands lets you generate a random number between the range [$START; $END].
Sample Output

By: pyrho
2009-02-17 05:05:30

What Others Think

It's alot easier than that: START=20; END=50; echo $((START+RANDOM%END-START))
SiegeX · 594 weeks and 3 days ago
Ignore the previous comment, thats what I get when I type before I try. Here is the proper way to do this without having to resort to extern commands. START=20; END=50; echo $((RANDOM%(END-START+1)+START))
SiegeX · 594 weeks and 3 days ago
How about: python -c "import random; print(random.randrange(20, 50))"
int19h · 594 weeks and 3 days ago
keep it simple :) echo $(( $RANDOM % 30 + 20))
berta · 594 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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