Update node & npm bash

n.sh

#! /bin/bash

# node update
echo 'update node.js...'
echo 'current node version:'
node -v
echo 'clean npm cache...'
sudo npm cache clean -f
echo 'update n...'
sudo npm install -g n
echo 'update node...'
sudo n stable
echo 'updated node. Current version is:'
node -v

# npm update
echo 'update npm...'
echo 'current npm version:'
npm -v
sudo npm install -g npm
echo 'updated npm. Current version is:'
npm -v

1. add permission:

chmod 777 n.sh

1. do update

./n.sh