Category Archives: Linux

Posts about Linux OS tips/tricks or news

Update Ubuntu from command line

Instead of using the UI I do a lot of the administration from command line.  These are the commands you must enter a Ubuntu Linux Command Prompt to update/patch your server.

sudo apt-get update                # Fetches the list of available updates
sudo apt-get upgrade               # Strictly upgrades the current packages
sudo apt-get dist-upgrade          # Installs updates (new ones)

How to cleanup unused kernels from /boot

This is very handy command that I run maybe once or twice a year or when I need to clean up space off the /boot partition on my Linux Servers.

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