Simple shell for virt-viewer

#!/bin/bash
 sudo virsh list | cut -d " " -f4 | cat -n | tee /tmp/virshlist.$$
echo -n "Подключиться к: "
read number
if [ "$number" = "0" ]; then
exit 0
else
 name="$(cat /tmp/virshlist.$$ | head -$number | tail -1 | awk '{print $2}')"
 rm -f /tmp/virshlist.$$
 sudo virt-viewer "$name" || exit 2
fi
rm -f /tmp/virshlist.$$ exit 0