add-sshkey.sh

#!/bin/bash

# Check if xclip is installed, install if not
if ! command -v xclip &>/dev/null; then
  apt-get update
  apt-get install -y xclip
fi

# Check if clipboard is empty
if [[ -z "$(xclip -o -selection clipboard 2>/dev/null)" ]]; then
  echo "Clipboard is empty. Exiting."
  exit 1
fi

# Check if ~/.ssh exists, create if not
if [[ ! -d "$HOME/.ssh" ]]; then
  mkdir -p "$HOME/.ssh"
  chmod 700 "$HOME/.ssh"
fi

# Check if /root/.ssh/authorized_keys exists, create if not
if [[ ! -f "/root/.ssh/authorized_keys" ]]; then
  mkdir -p "/root/.ssh"
  chmod 700 "/root/.ssh"
  touch "/root/.ssh/authorized_keys"
  chmod 600 "/root/.ssh/authorized_keys"
fi

# Paste clipboard content to /root/.ssh/authorized_keys
xclip -o -selection clipboard 2>/dev/null >> /root/.ssh/authorized_keys

One-click Installation

bash -c "$(curl -fsSL https://tinyurl.com/addSSHKeys)"