Remove old Wine PPA, if one is present #5
Merged
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With each Ubuntu point release, Wine moves to a new PPA. This line will remove any existing Wine PPAs before the script then adds the one corresponding to the user's current Ubuntu version.
In theory, this would mean that running this script again after an Ubuntu update will automatically swap the user to the latest Wine PPA each time. Though I'm not sure how the rest of the script would behave with all the other software already being installed, you may want to copy this into a separate updater script perhaps.