Bash: How to generate a random number within given boundaries
$RANDOM on bash returns a random integer between 0 and 32767.
echo $RANDOM 9816 echo $RANDOM 30922
If you want to limit that to a certain maximum, you can just compare against the modulus of that maximum + 1. \
For example, the following will yield results between 0 and 9:
echo $(($RANDOM % 10)) 5 echo $(($RANDOM % 10)) 9
Note that this skews random numbers to the lower regions of your boundaries in most cases.
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