Install node.js and npm quickly

node.js

go on nodejs.org
download source

tar -xvzf node-v0.6.15.tar.gz
cd node node-v0.6.15/
./configure
make
make test
make doc
sudo make install

npm

wget http://npmjs.org/install.sh
sudo bash install.sh
 
tar=/bin/tar
version:
tar (GNU tar) 1.25
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
 
Written by John Gilmore and Jay Fenlason.
install npm@1.1
fetching: http://registry.npmjs.org/npm/-/npm-1.1.18.tgz
0.6.15
1.1.18
cleanup prefix=/usr/local
 
All clean!
/usr/local/bin/npm -> /usr/local/lib/node_modules/npm/bin/npm-cli.js
npm@1.1.18 /usr/local/lib/node_modules/npm
It worked
npm install socket.io