Ubuntu system to add user rights

First, start by creating a new user:

sudo adduser hadoop

Second password:

sudo passwd hadoop

 

If you can not use the root password, enter the following command:

sudo passwd root

 

Second, change user permissions sudo, change the / etc / sudosers file

cd /etc

sudo vim /etc/sudosers

 

Add to

hadoop ALL=(ALL:ALL) ALL

 

Third, delete users

sudo userdel -r hadooop