Many packages install dynamic libraries which other packages link against. When updating such a package the old instance of a dynamic library is removed causing dynamic links to break. The package gentoolkit contains a tool to check an repair the dynamic linking of your system: revdep-rebuild.
List packages and versions matching a string. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.
It is sometimes useful to obtain a list of files which were merged for a certain package. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.
When managing the packages installed on your system emerge logs start and stop times of merging and unmerging packages.
Normal users will most certainly experience some problems running emerge because it does not have the permissions required to cache calculations.
A list of packages which depend on the specified package can be retrieved by the following. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.
This feature has not been implemented in gentoolkit-0.2 yet but the etcat variant which is presented below does still work. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.
The size of an installed package can be retrieved by equery size STRING. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.
The commands presented below attempt to find an installed package which is responsible for merging the desired file. etcat and qpkg are superceded by equery as of portage-2.0.50 and gentoolkit-0.2.