Originally written April 2021, updated December 2023

Per Tor Project's updated documentation, this script should work for any version of Debian or Ubuntu.

Easy mode

curl -s https://yawnbox.com/scripts/tor_install.sh | sudo bash

The script

#!/bin/bash

GREEN='\033[0;32m'
NC='\033[0m' # No Color

echo -e "${GREEN}Checking CPU architecture...${NC}"
ARCH=$(dpkg --print-architecture)
if [[ "$ARCH" != "amd64" && "$ARCH" != "arm64" && "$ARCH" != "i386" ]]; then
    echo -e "${GREEN}Unsupported architecture: $ARCH${NC}"
    exit 1
fi

echo -e "${GREEN}Installing apt-transport-https...${NC}"
apt install apt-transport-https -y

echo -e "${GREEN}Checking for GPG installation...${NC}"
if ! command -v gpg > /dev/null; then
    echo -e "${GREEN}GPG not found, installing...${NC}"
    apt update && apt install gpg -y
else
    echo -e "${GREEN}GPG is already installed.${NC}"
fi

echo -e "${GREEN}Checking for Tor installation...${NC}"
if ! command -v tor > /dev/null; then
    echo -e "${GREEN}Tor not found, installing...${NC}"
    echo "Adding Tor Project repository..."
    echo "deb [signed-by=/usr/share/keyrings/tor-archive-keyring.gpg] https://deb.torproject.org/torproject.org $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/tor.list
    wget -qO- https://deb.torproject.org/torproject.org/A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89.asc | gpg --dearmor | tee /usr/share/keyrings/tor-archive-keyring.gpg >/dev/null
    apt update
    apt install tor deb.torproject.org-keyring -y
else
    echo -e "${GREEN}Tor is already installed. Version: $(tor --version)${NC}"
fi

echo -e "${GREEN}Checking Tor version...${NC}"
tor --version

yawnbox