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You can check the use consumption of random numbers by running the following commands in two separate console windows:

Code Block

language	bash
title	Monitor use of random numbers with Unix

while true
do
    cat /proc/sys/kernel/random/entropy_avail
    sleep 1
done

You can consume random numbers from a script like this:

Code Block

language	bash
title	Run test for random numbers with Unix

for ((i=1; i<=100; i++)); do
   head -200 /dev/random | cksum | cut -f1 -d ' '
   sleep 0.1
done

You can consume random numbers from a similar script like this:

Code Block

language	bash
title	Run test for random numbers with Unix

# initial test
dd if=/dev/random of=/dev/null bs=1024 count=1 iflag=fullblock 

# full test (should rngtest be available)
rngtest -c 100 </dev/random

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