Error in installing the ionic framework on UBUNTU

I have installed nodejs and npm
Moving on to the next installation (Then, install the latest Cordova and Ionic command-line tools) gives me errors. Please I need help urgently. Below are the errors:

npm WARN deprecated npmconf@2.1.2: this package has been reintegrated into npm and is now out of date with respect to npm

npm WARN engine cordova-serve@1.0.0: wanted: {“node”:“>=
0.12.0”,“npm”:“>= 2.5.1”} (current:
{“node”:“0.10.25”,“npm”:“1.4.21”})

npm WARN
engine deep-extend@0.4.1: wanted:
{“node”:“>=0.12.0”,“iojs”:“>=1.0.0”} (current:
{“node”:“0.10.25”,“npm”:“1.4.21”})
/usr/local/bin/cordova → /usr/local/lib/node_modules/cordova/bin/cordova
npm WARN package.json eyes@0.1.8 No repository field.
npm WARN package.json faye-websocket@0.4.4 ‘repositories’ (plural) Not supported.
npm WARN package.json Please pick one as the ‘repository’ field
/usr/local/bin/ionic → /usr/local/lib/node_modules/ionic/bin/ionic

node-sass@3.4.2 install /usr/local/lib/node_modules/ionic/node_modules/node-sass
node scripts/install.js

sh: 1: node: not found
npm WARN This failure might be due to the use of legacy binary “node”
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian
**> **
npm ERR! node-sass@3.4.2 install: node scripts/install.js
npm ERR! Exit status 127
**> npm ERR! **
npm ERR! Failed at the node-sass@3.4.2 install script.
npm ERR! This is most likely a problem with the node-sass package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node scripts/install.js
npm ERR! You can get their info via:
npm ERR! npm owner ls node-sass
npm ERR! There is likely additional logging output above.

npm ERR! System Linux 4.2.0-30-generic
npm ERR! command “/usr/bin/nodejs” “/usr/bin/npm” “install” “-g” “cordova” “ionic”
npm ERR! cwd /home/dr
npm ERR! node -v v0.10.25
npm ERR! npm -v 1.4.21
npm ERR! code ELIFECYCLE
**> npm ERR! **
npm ERR! Additional logging details can be found in:
npm ERR! /home/dr/npm-debug.log
npm ERR! not ok code 0