On a new Ubuntu Machine, I do the following sequence to customize and update it.
Step#1 - Archives.
1.1 Giving write access to archives.
1.2
Step#2 - Install gdebi
Step#3 - Install Beyond Compare
Install Google Chrome
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Uninstall default software
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Date - 2014-12-16
LibreOffice Draw
LibreOffice Math
LibreOffice Impress
Thunderbird