You can do the following using the terminal:
To see all packages and look for the one you installed - dpkg --get-selections | grep -v deinstall
To see a broader list - dpkg -l
Use grep tool
to search for the two keywords
you mentioned above - dpkg --get-selections | grep [youtube-to-mp3]
If using Ubuntu version greater than 14.04, use apt list --installed
.
Then after identifying the package (note: options 1 & 2 will give you large outputs as I saw when I ran it) you can simple do:
For Ubuntu 14.04 and older:
sudo apt-get purge <the-package-name>
For Ubuntu 16.04 and newer:
sudo apt purge <the-package-name>
youtube-to-mp3
? – AlexP Dec 01 '16 at 22:31