cat to a variable. freebsd?

Question

bash

I am writing a bash script, I want to get a two-digit random number to put it in sleep. I write like this in the sss.sh script:

ss=`cat /dev/urandom | tr -d -c '0-9' | fold -w 10 | head -1 | awk '{print substr($0, 1, 2)}'`
echo ss

result:

sh sss.sh
ss

Can you please tell me how to solve the problem?

Answer 1

echo $ss