Get random number on command line on MacOs (like shuf)

Question

I need add random number to filename. On Linux I use command like

filename$(shuf -i 10000000-99999999 -n 1)

But on MacOs with this command I recieve error:

sh: shuf: command not found

Here are another solution on MacOs for make it?

Answer 1

Like this maybe:

dd bs=4 count=1 if=/dev/urandom 2>/dev/null | xxd -p 
7bfe4143

Or with od:

head -c 4 /dev/urandom | od -An -tu4
2465874330

Or with bash's $RANDOM:

echo $RANDOM$RANDOM
820227815