How do I find additional free repositories for Ubuntu 18.04 LTS?
7371
What are PPAs and how do I use them?
17386
Where I do find feature lists for upcoming Ubuntu versions? [16.04]
79163
Sources missing in /etc/apt/sources.list, how do I get them back?
6851
How do I install the ubuntu-restricted-extras package?
68723
How to know the source repository of a package in debian?
95336
Installing particular versions when repo has newer versions?
51515
Where can I find the source code of Ubuntu?
66694
Is there an apt command to download a deb file from the repositories to the current directory?
86185
How to install a list of packages using apt-get?
1159
Apt/Synaptic needs to reinstall package but can't find the archive for it
114896
How can I see all versions of a package that are available in the archive?
63320
Ubuntu repository does not have a Release file
743
How do I enable the "Universe" repository?
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
40021
How can I get a list of all packages available for a specific version of Ubuntu (not necessarily the one I have installed)?
30645
How to install (old) packages for Ubuntu 9.04?
41054
How can I check the available version of a package in the repositories?