Creating a User in Linux

Creating a User

At the beginning, it is recommended to create a separate user for Hadoop to isolate Hadoop file system from Unix file system. Follow the steps given below to create a user:

• Open the root using the command “su”.
• Create a user from the root account using the command “useradd username”.
• Now you can open an existing user account using the command “su username”.

Open the Linux terminal and type the following commands to create a user.

$ su 
   password: 
# useradd hadoop 
# passwd hadoop 
   New passwd: 
   Retype new passwd