Debian ====== Removed unused packages ----------------------- http://www.waveguide.se/?article=how-to-quickly-remove-all-unused-packages-under-debian https://www.debian-administration.org/article/134/Removing_unnecessary_packages_with_deborphan .. code-block:: bash $ deborphan $ deborphan --guess-data $ deborphan --guess-all $ dpkg --purge `deborphan --guess-all` .. code-block:: bash $ egrep '^Status: |^Package: ' /var/lib/dpkg/status | egrep -B 1 'half-installed|half-configured|unpacked|triggers-awaited|triggers-pending' $ dpkg --audit Annoying autorenaming in Guake ------------------------------ http://askubuntu.com/questions/254566/annoying-autorenaming-in-guake First install `gconf-editor` .. code-block:: bash $ sudo apt-get install gconf-editor Then run `gconf-editor` and browse to `/apps/guake/general` and unmarked `use_vte_titles` key How do you uninstall a library in Linux? ---------------------------------------- http://stackoverflow.com/questions/1439950/whats-the-opposite-of-make-install-ie-how-do-you-uninstall-a-library-in-lin If sudo make uninstall is unavailable: In a debian based system, instead of doing make install you can run sudo checkinstall (or .rpm etc. equivalent) to make a .deb that is also automatically installed. You can then remove it using synaptic .. code-block:: bash $ sudo checkinstall Thunderbird ----------- The `Icedove` debian package is an unbranded Thunderbird The `Enigmail` is a security extension to Mozilla Thunderbird and Seamonkey. It enables you to write and receive email messages signed and/or encrypted with the OpenPGP standard. Sending and receiving encrypted and digitally signed email is simple using Enigmail. Yandex Setting up mail clients ------------------------------ https://help.yandex.com/mail/mail-clients.xml How to adjust screen lock settings on Linux debian desktop ---------------------------------------------------------- To adjust screen lock settings from the command line, you can edit ~/.kde/share/config/kscreensaverrc. Create the file if it does not exist. Once the file is edited, the change will automatically take effect immediately. .. code-block:: bash $ vi ~/.kde/share/config/kscreensaverrc [ScreenSaver] Lock=true LockGrace=300000 PlasmaEnabled=false Timeout=900 How to install Google Earth on Debian ------------------------------------- .. code-block:: bash # aptitude install googleearth-package $ make-googleearth-package $ apt-get install -f # dpkg -i googleearth_4.2.205.5730+0.5.2-1_i386.deb Restarting Networking --------------------- .. code-block:: bash # systemctl restart networking # systemctl restart network-manager https://wiki.debian.org/NetworkManager Package manager is locked ------------------------- .. code-block:: bash $ rm /var/lib/dpkg/lock /var/cache/apt/archives/lock /var/lib/apt/lists/lock Some index files failed to download ----------------------------------- .. code-block:: bash $ sudo apt-get update E: Some index files failed to download. They have been ignored, or old ones used instead. It means that these sources cannot be reached, try selecting another server to fetch from.