Most of the server versions for ubuntu doesn’t comes by default with this extremely useful feature, in order to use it you just need to:
sudo apt-get install bash-completion
And add this text to the
# enable bash completion in interactive shells if ! shopt -oq posix; then if [ -f /usr/share/bash-completion/bash_completion ]; then . /usr/share/bash-completion/bash_completion elif [ -f /etc/bash_completion ]; then . /etc/bash_completion fi fi
And just logout and login again, it should work now!