Suppose you have a third-party PPA repository added on your Ubuntu system.
If you want to delete a PPA repository alone, run the following command.
Note that the above command does not touch any packages installed or upgraded from the PPA itself.
If you want to delete a PPA repository as well as all packages installed/upgraded from the PPA, you can use ppa-purge command.
To install ppa-purge package:
To remove a PPA repository and all its packages from the command line:
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