Bash script for installing Ubuntu apps.

install_ubuntu_apps.sh

#!/bin/bash
#
# This script automates the setup of a fresh Ubuntu installation.
# It installs common applications, development tools, and sets up the shell environment.

# Exit immediately if a command exits with a non-zero status.
set -e

print_header() {
  tput setaf 1; echo -e "\n===> $1"; tput sgr0
}

add_gpg_key() {
  print_header "Adding GPG key for $2"
  if [ ! -f "$2" ]; then
    curl -fsSL "$1" | sudo gpg --dearmor -o "$2"
  else
    echo "GPG key $2 already exists. Skipping."
  fi
}

add_apt_repository_and_key() {
  add_gpg_key "$1" "$2"
  echo "$3" | sudo tee "/etc/apt/sources.list.d/$4.list" > /dev/null
}

install_deb_from_url() {
  local app_name="$1"
  local url="$2"
  local pkg_name="$3"

  if dpkg -s "$pkg_name" &> /dev/null; then
    echo "$app_name is already installed. Skipping."
  else
    print_header "Installing $app_name"
    local deb_file="$app_name.deb"
    wget --show-progress -q -O "$deb_file" "$url"
    sudo apt install -y "./$deb_file"
    rm -f "./$deb_file"
  fi
}

# --- Main Script ---

# Create a temporary directory for downloads and schedule it for removal on exit.
TMP_DIR=$(mktemp -d)
trap 'rm -rf -- "$TMP_DIR"' EXIT
cd "$TMP_DIR"

# --- System Update and Base Packages ---

print_header "Updating system and installing base packages"
sudo apt update && sudo apt upgrade -y && sudo apt dist-upgrade -y && sudo apt full-upgrade -y && sudo ubuntu-drivers autoinstall
sudo apt install -y ca-certificates curl gnupg lsb-release software-properties-common

# --- Add APT Repositories ---

print_header "Adding third-party APT repositories"

# DBeaver
add_apt_repository_and_key \
  "https://dbeaver.io/debs/dbeaver.gpg.key" \
  "/usr/share/keyrings/dbeaver.gpg" \
  "deb [signed-by=/usr/share/keyrings/dbeaver.gpg] https://dbeaver.io/debs/dbeaver-ce /" \
  "dbeaver"

# Anydesk
add_apt_repository_and_key \
  "https://keys.anydesk.com/repos/DEB-GPG-KEY" \
  "/usr/share/keyrings/anydesk.gpg" \
  "deb [signed-by=/usr/share/keyrings/anydesk.gpg] http://deb.anydesk.com/ all main" \
  "anydesk-stable"

# Signal Desktop
add_apt_repository_and_key \
  "https://updates.signal.org/desktop/apt/keys.asc" \
  "/usr/share/keyrings/signal-desktop-keyring.gpg" \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg] https://updates.signal.org/desktop/apt xenial main" \
  "signal-xenial"

# Albert
add_apt_repository_and_key \
  "https://download.opensuse.org/repositories/home:manuelschneid3r/xUbuntu_$(lsb_release -rs)/Release.key" \
  "/usr/share/keyrings/home_manuelschneid3r.gpg" \
  "deb [signed-by=/usr/share/keyrings/home_manuelschneid3r.gpg] http://download.opensuse.org/repositories/home:/manuelschneid3r/xUbuntu_$(lsb_release -rs)/ /" \
  "home:manuelschneid3r"

# Clean up old VSCode repository configurations
print_header "Cleaning up old VSCode configurations"
sudo rm -f /etc/apt/sources.list.d/vscode.list*
sudo rm -f /usr/share/keyrings/microsoft.gpg

# VSCode
add_apt_repository_and_key \
  "https://packages.microsoft.com/keys/microsoft.asc" \
  "/usr/share/keyrings/packages.microsoft.gpg" \
  "deb [arch=amd64,arm64,armhf signed-by=/usr/share/keyrings/packages.microsoft.gpg] https://packages.microsoft.com/repos/code stable main" \
  "vscode"

# Docker
add_apt_repository_and_key \
  "https://download.docker.com/linux/ubuntu/gpg" \
  "/usr/share/keyrings/docker-archive-keyring.gpg" \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" \
  "docker"

# --- Add PPAs ---
print_header "Adding PPAs"
sudo add-apt-repository -y ppa:obsproject/obs-studio
sudo add-apt-repository -y ppa:qbittorrent-team/qbittorrent-stable

# --- Install .deb packages from URLs ---
install_deb_from_url "Discord" "https://discordapp.com/api/download?platform=linux&format=deb" "discord"
install_deb_from_url "Zoom" "https://zoom.us/client/latest/zoom_amd64.deb" "zoom"
install_deb_from_url "Mailspring" "https://updates.getmailspring.com/download?platform=linuxDeb" "mailspring"
install_deb_from_url "Teamviewer" "https://download.teamviewer.com/download/linux/teamviewer-host_amd64.deb" "teamviewer-host"

# --- Install APT Packages ---
print_header "Installing APT packages"
sudo apt update
sudo apt install -y \
  nvidia-cuda-toolkit nvidia-cudnn dconf-editor build-essential apt-utils git nano vim lsof locate net-tools \
  libssl-dev curl unzip unrar cmake openjdk-11-jdk openjdk-11-jre jq \
  redis tlp apt-transport-https mysql-client dbeaver-ce anydesk libssl-dev \
  zlib1g-dev libncurses5-dev libncursesw5-dev libreadline-dev libgdbm-dev \
  libdb5.3-dev flatpak gnome-software-plugin-flatpak libbz2-dev libexpat1-dev liblzma-dev tk-dev \
  libffi-dev bleachbit stacer timeshift gimp zsh signal-desktop ffmpeg \
  chromium-codecs-ffmpeg-extra tmux vlc python3-pip python3-dev \
  psensor htop gnome-tweak-tool gparted albert terminator code \
  tree obs-studio docker-ce docker-ce-cli containerd.io rclone spice-vdagent \
  tor neofetch qbittorrent virtualbox virtualbox-ext-pack

snap install bluemail
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak install com.bitwarden.desktop

# --- Install Other Tools ---
print_header "Installing Speedtest CLI"
if command -v speedtest &> /dev/null; then
  echo "Speedtest CLI is already installed. Skipping."
else
  curl -s https://packagecloud.io/install/repositories/ookla/speedtest-cli/script.deb.sh | sudo bash
  sudo apt install -y speedtest
fi

print_header "Installing Postman"
if snap list | grep -q "postman"; then
  echo "Postman is already installed. Skipping."
else
  sudo snap install postman
fi

# --- System and Shell Configuration ---
print_header "Configuring system settings"
gsettings set org.gnome.shell.extensions.dash-to-dock extend-height false
gsettings set org.gnome.shell.extensions.dash-to-dock dock-position BOTTOM
gsettings set org.gnome.shell.extensions.dash-to-dock transparency-mode FIXED
gsettings set org.gnome.shell.extensions.dash-to-dock dash-max-icon-size 24
gsettings set org.gnome.shell.extensions.dash-to-dock unity-backlit-items true
gsettings set org.gnome.shell.extensions.dash-to-dock click-action 'minimize'
gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled true
gsettings set com.canonical.indicator.power show-percentage true
gsettings set org.gnome.nautilus.list-view default-zoom-level 'smaller'
gsettings set org.gtk.Settings.FileChooser show-hidden true

print_header "Configuring shell environment"
SHELL_CONFIGS=("$HOME/.zshrc" "$HOME/.bashrc")
for config in "${SHELL_CONFIGS[@]}"; do
  {
    echo ''
    echo '# --- Custom Environment ---'
    echo 'export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64'
    echo 'export PATH=$PATH:$JAVA_HOME/bin'
    echo 'alias python=python3'
    echo 'alias pip=pip3'
  } >> "$config"
done

# --- SSH Key Generation ---
print_header "Generating SSH key"
if [ ! -f "$HOME/.ssh/id_rsa" ]; then
  mkdir -p "$HOME/.ssh"
  chmod 700 "$HOME/.ssh"
  ssh-keygen -t rsa -b 4096 -C "$(whoami)@$(hostname)" -N "" -f "$HOME/.ssh/id_rsa"
  print_header "SSH key generated. Please add the public key to your services (GitHub, GitLab, etc.)"
  cat "$HOME/.ssh/id_rsa.pub"
else
  echo "SSH key already exists. Skipping generation."
fi

# --- Final Steps ---
print_header "Disabling services on startup"
sudo systemctl disable mysql anydesk.service redis postgresql.service docker.service docker.socket || true
sudo teamviewer --daemon disable || true

print_header "Cleaning up"
sudo apt autoclean -y && sudo apt autoremove -y

print_header "Installing Oh My Zsh"
if [ ! -d "$HOME/.oh-my-zsh" ]; then
  sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
fi

print_header "Setting Zsh as default shell"
if [ "$SHELL" != "$(which zsh)" ]; then
  sudo chsh -s "$(which zsh)" "$USER"
  echo "Zsh is now the default shell. Please log out and log back in for the change to take effect."
else
  echo "Zsh is already the default shell."
fi

print_header "Script finished successfully!"
echo "Please restart your terminal or run 'source ~/.bashrc' or 'source ~/.zshrc' for changes to take effect."
echo "You may also want to restart your system."