I have re-installed Lubuntu 14.10 on my laptop (eee pc 701),but if I want to remove anything, he will also remove the package "lubuntu-desktop". Is it safe to remove?
One of the handy features of apt (the packaging system used by Ubuntu)
is the use of metapackages. These packages do not contain actual
software, they simply depend on other packages to be installed. This
setup allows entire sets of software to be installed by selecting only
the appropriate metapackage. For example, an Ubuntu user can install
the Kubuntu environment (KDE and all its associated programs) by
selecting "kubuntu-desktop."
Because one or more of the packages you are uninstalling are a dependency of the lubuntu-desktop package, it will need to be removed as well. But removing the lubuntu-desktop package itself won't break anything since it doesn't contain any actual software.
You can see more information about the package (such as which packages it depends on) by running this command in a terminal:
Yes, it's safe to remove. It's a "metapackage":
https://help.ubuntu.com/community/MetaPackages
Because one or more of the packages you are uninstalling are a dependency of the lubuntu-desktop package, it will need to be removed as well. But removing the lubuntu-desktop package itself won't break anything since it doesn't contain any actual software.
You can see more information about the package (such as which packages it depends on) by running this command in a terminal:
I believe that Lubuntu-desktop is a metapackage. It can be safely removed if you want to remove some programs that are installed by default.