List All Packages That Have Updates Available In Ubuntu
January 4, 2018
https://askubuntu.com/questions/99834/how-do-you-see-what-packages-are-available-for-update
or/usr/lib/update-notifier/apt-check -phttps://askubuntu.com/questions/49958/how-to-find-the-number-of-packages-needing-update-from-the-command-line
$ sudo cat /var/lib/update-notifier/updates-available$ sudo apt-get upgrade$ sudo apt-get dist-upgradedist-upgradein addition to performing the function of upgrade, also intelligently handles changing dependencies with new versions of packages; apt-get has a “smart” conflict resolution system, and it will attempt to upgrade the most important packages at the expense of less important ones if necessary. So, dist-upgrade command may remove some packages. The /etc/apt/sources.list file contains a list of locations from which to retrieve desired package files. See also apt_preferences(5) for a mechanism for overriding the general settings for individual packagesto retart/reboot the system:
$ sudo reboot
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