Clean Old Linux Kernels (Ubuntu)

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

Credit: http://ubuntugenius.wordpress.com/2011/01/08/ubuntu-cleanup-how-to-remove-all-unused-linux-kernel-headers-images-and-modules/

Updating R from R (on Windows) – using the {installr} package

http://www.r-statistics.com/2013/03/updating-r-from-r-on-windows-using-the-installr-package/

HTML URL Decoder/Encoder:

http://meyerweb.com/eric/tools/dencoder/