This is a follow up to this post. The below script is written with automated CPANEL updates in mind, but could be quite easily modified to be used with any automated updates with logs.
cd /var/cpanel/updatelogs # Change to cpanel updates logs directory.
VAR1=$(ls -tr up*|tail -1) # Find the latest log and set it as a variable.
egrep 'Error:|error:|Another app is currently holding the yum lock|Segmentation fault' $VAR1 > /tmp/update-check # Check for errors and output to temp file
if egrep 'Error:|error:|Another app is currently holding the yum lock|Segmentation fault' /tmp/update-check; then # If then to check for errors and send email alert if required.
/bin/mail -s "$(echo -e "Check to see if updates work, failed\nX-Priority: 1")" < /tmp/update-check root
unset VAR1 # Unset variable.
Cronjob should be scheduled about an hour after updates:
0 0 * * * /bin/bash /usr/local/sbin/upcp-check.sh &>/dev/null
P.S Please feel free to comment.