CRON_TASK="* * * * * /usr/bin/usage-logging/another-minute.sh"

post_install ()
{
    echo "Adding cron task..."
    crontab -l | { cat; echo "$CRON_TASK"; } | crontab -
}

pre_remove ()
{
    echo "Removing cron task..."
    crontab -l | grep -Fxv "$CRON_TASK" | crontab -
}