---- search package name
+--- search package by name
apt-cache search emacs
+
--- install one package
apt-get install emacs23-nox
+
--- preparing upgrade (fetch and index latest versions of the repos)
apt-get update
--- actually update one package
apt-get upgrade myslice
+
--- list packages
dpkg -l
dpkg -l '*foo*'
+
--- list (files for) one package
dpkg -L myslice
dpkg-deb -c myslice_0.2.4.lxc.2013.11.26_amd64.deb
--- find which package a file belongs to
apt-file search /path/to/file
(can be installed with : sudo apt-get install apt-file)
+
+--- reinstall a package
+apt-get purge openfire
+apt-get install openfire