Replace sleep/ctrl-c with read-based prompt for warning in setup_wargame.sh

Author: aweinstock314

setup_wargame.sh

@@ -7,8 +7,11 @@
 # Warn the user about running this on their host machine
 # (because it makes various invasive settings-changes, and runs a ton of vulnerable services)
 echo -e "\x1b[31;1mDON'T RUN THIS ON YOUR REAL COMPUTER\x1b[0m"
-echo -e "If you're running this on your real computer, \x1b[31;1mpress control-c NOW\x1b[0m to stop this script."
-sleep 10
+echo "Are you running this inside a VM? (If you don't know what that means, don't run the script.)"
+read -p "(yes/no)> "
+if [ "$REPLY" != 'yes' ]; then
+    exit
+fi
 
 if [ "$USER" != 'root' ]; then
     echo "ERROR: Script must be run using root!"