Update system
sudo apt-get update && sudo apt-get upgrade
Remove unnecessary apps
sudo apt-get remove --purge aisleriot gnome-mahjongg deja-dup deja-dup-backend-gvfs totem totem-common totem-mozilla totem-plugins activity-log-manager activity-log-manager-control-center brasero brasero-cdrkit brasero-common landscape-client-ui-install unity-control-center unity-control-center-signon empathy empathy-common thunderbird thunderbird-gnome-support onboard onboard-data gnome-orca unity-webapps-common shotwell rhythmbox evolution-data-server evolution-data-server-online-accounts gnome-calendar gucharmap cheese vino gnome-mines gnome-sudoku xdiagnose usb-creator-gtk remmina* remmina-common* remmina-plugin-rdp* remmina-plugin-vnc*
sudo apt-get remove $(dpkg --get-selections | cut -f1 | grep -P "^unity-(lens|scope)-" | grep -vP "unity-(lens|scope)-(home|applications|files)" | tr "\n" " ")
sudo apt-get autoremove
Execute sudo without Password
Open terminal and execute command
sudo visudo
Add the below line at the bottom
username ALL=(ALL) NOPASSWD: ALL
Replace username with the username of your system. Now press Ctrl + X then Ctrl + Y and then press Enter.
Display full list of startup applications and processes
sudo sed -i 's/NoDisplay=true/NoDisplay=false/g' /etc/xdg/autostart/*.desktop
Now you can open Startup Applications and remove unnecessary applications that starts as ubuntu starts.
Enable passwordless ssh
Add noatime to fstab
disable last accessed time.
Published in: Ubuntu