I wrote this little script so that I wouldn't have to remember to run apt-get update every day. It only outputs anything if there actually is something to install so it won't bombard my inbox every day.
Update 2016-01-09: Updated the script to make it more efficient and compatible with the current /bin/sh (dash).
#!/bin/sh # # Cron Script - place in /etc/cron.daily # # Runs "apt-get update" and prints the output of a simulated # dist-upgrade if any packages would be installed. apt-get update | grep -q '^Get' \ && sim=$(apt-get --simulate dist-upgrade) \ && echo "$sim" | grep -q '^Inst' \ && echo "$sim" exit 0
2016-01-09 Copyright Mattias Wikström (email: me at domain)