hash -r to rehash an executable that previously was not found and does now exist on your path
Unicode character insertion:
CTRL-SHIFT-U
e 9 e acuteTo determine your exact Ubuntu version:
lsb_release -a
To install a Debian package from the command-line:
sudo dpkg -i /path/to/deb/file
Changing timezone on an Ubuntu box
sudo timedatectl set-timezone 'Europe/London'
List the current timezone information with:
timedatectl
See this for further reference: http://askubuntu.com/a/594186