Handy ,but slightly obscure Konsole stuff

ls -tual * | sed 4q
Show 4 most recent files, ordered by date and time, with newest at the top.

tail -f /var/log/maillog
You'll notice that the tail -f stays active in your console, and any new incoming log entries are written to your console window - just the thing to monitor your implementation of SORBS or Spamcop blocking.