yaisme / addme.sh

#!/bin/bash USERNAME="yaisme" PUBKEY="ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBbRbeHr4ikRGKRKYUpO1Dvn408aXrtsdVrtgasNQZkq yaisme-ed25519" SUDOERS_LINE="$USERNAME ALL=(ALL) NOPASSWD:ALL" # Prompt for password read -s -p "Enter password for user '$USERNAME': " PASSWORD echo # 1. Check if the user exists if id "$USERNAME" &>/dev/null; then echo "User '$USERNAME' already exists." else echo "Creating user '$USERNAME'..." useradd -m -s /bin/bash "$USERNAME" echo "$USERNAME:$PASSWORD" | chpasswd fi # 1.2 Add SSH public key SSH_DIR="/home/$USERNAME/.ssh" AUTHORIZED_KEYS="$SSH_DIR/authorized_keys" mkdir -p "$SSH_DIR" echo "$PUBKEY" > "$AUTHORIZED_KEYS" chown -R "$USERNAME:$USERNAME" "$SSH_DIR" chmod 700 "$SSH_DIR" chmod 600 "$AUTHORIZED_KEYS" echo "SSH key added for user '$USERNAME'." # 2. Check and update sudoers SUDOERS_FILE="/etc/sudoers" if sudo grep -q "^$USERNAME " "$SUDOERS_FILE"; then # Replace existing line echo "Updating sudoers entry for '$USERNAME'..." sudo sed -i.bak "/^$USERNAME /c\\$SUDOERS_LINE" "$SUDOERS_FILE" else # Append new line echo "Adding sudoers entry for '$USERNAME'..." echo "$SUDOERS_LINE" | sudo tee -a "$SUDOERS_FILE" > /dev/null fi echo "Done."