install telegram desktop from github on linux mint

install-telegram.sh

#!/usr/bin/env bash
set -e

APP_NAME="Telegram Desktop"
INSTALL_DIR="/opt/telegram"
BIN_LINK="/usr/local/bin/telegram"
DESKTOP_FILE="/usr/share/applications/telegram.desktop"
ICON_DIR="/usr/share/icons/hicolor/256x256/apps"
ICON_PATH="$ICON_DIR/telegram.png"

TMP_DIR="$(mktemp -d)"
GITHUB_API="https://api.github.com/repos/telegramdesktop/tdesktop/releases/latest"

echo "[+] Fetching latest Telegram Desktop release..."

TAR_URL=$(curl -s "$GITHUB_API" \
  | grep browser_download_url \
  | grep linux \
  | grep tar.xz \
  | cut -d '"' -f 4)

if [[ -z "$TAR_URL" ]]; then
  echo "[!] Failed to detect Telegram Desktop release"
  exit 1
fi

echo "[+] Downloading: $TAR_URL"
curl -L "$TAR_URL" -o "$TMP_DIR/telegram.tar.xz"

echo "[+] Extracting archive..."
tar -xf "$TMP_DIR/telegram.tar.xz" -C "$TMP_DIR"

echo "[+] Installing to $INSTALL_DIR"
sudo rm -rf "$INSTALL_DIR"
sudo mv "$TMP_DIR/Telegram" "$INSTALL_DIR"
sudo chmod +x "$INSTALL_DIR"/*

echo "[+] Creating symlink $BIN_LINK"
sudo ln -sf "$INSTALL_DIR/Telegram" "$BIN_LINK"

echo "[+] Installing icon"
sudo mkdir -p "$ICON_DIR"
sudo curl -L https://desktop.telegram.org/img/td_logo.png -o "$ICON_PATH"

echo "[+] Creating desktop entry"
sudo tee "$DESKTOP_FILE" >/dev/null <<EOF
[Desktop Entry]
Name=Telegram Desktop
Comment=Official Telegram Desktop (Binary)
Exec=$BIN_LINK
Icon=telegram
Terminal=false
Type=Application
Categories=Network;InstantMessaging;
StartupWMClass=TelegramDesktop
EOF

echo "[+] Updating desktop database"
sudo update-desktop-database

echo "[✓] Telegram Desktop installed successfully"
echo "    Run: telegram"