One step install of node.js 5.1.0 for Linux/Mac (OS X - use "darwin" for THIS_PLATFORM)

install-node.sh

THIS_VERSION="9.3.0";
THIS_PLATFORM="linux";

echo "Downloading node.js tar...";
wget https://nodejs.org/dist/v$THIS_VERSION/node-v$THIS_VERSION-$THIS_PLATFORM-x64.tar.xz -O node;

echo "Untarring node.js tar 'node'...";
tar xf node;

echo "Deleting node.js tar 'node'...";
rm node;

echo "Copying node.js binaries to /usr/local/bin...";
sudo cp -R node-v$THIS_VERSION-$THIS_PLATFORM-x64/bin/* /usr/local/bin;
sudo cp -R node-v$THIS_VERSION-$THIS_PLATFORM-x64/lib/* /usr/local/lib;
sudo rm /usr/local/bin/npm;
sudo ln -s "/usr/local/lib/node_modules/npm/bin/npm-cli.js" /usr/local/bin/npm;

echo "Deleting untarred node.js...";
rm -rf node-v$THIS_VERSION-$THIS_PLATFORM-x64;