Things to do for every version of Ubuntu

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


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

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