Hot answers tagged synaptic
It can be done using apt-get easily . First create a source list which contain only security repo. sudo -i grep security /etc/apt/sources.list > /etc/apt/sources.seurity.list Now upgrade your system using this list apt-get upgrade -o Dir::Etc::SourceList=/etc/apt/security.sources.list I am not 100% sure about synaptic, but synaptic has a section ...
Launchpad isn't a software repository. It's a developer platform around software for Ubuntu and other Debian-based distributions. As such it includes many software repositories, that are searchable with software center once they're configured locally. There's a good reason to not include repositories where anybody can publish software to by default, because ...
If you want to install a .deb file you can use: dpkg -i file.deb But dpkg won't solve dependencies so, I would suggest you install from gdebi: gdebi file.deb
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