How to automatically create users in batches in Linux

As a  Linux  system administrator, you sometimes have to add new user accounts to the system. For this purpose, the adduser  command is often used . When it comes to the creation of multiple users, the adduser  command can become quite boring and time-consuming. This short article aims to provide Linux system administrators with a simple and unattended way to create users in batches. The newusers command will help you create multiple users by getting information from pre-populated files.

Require

Privileged access to Linux computers.

Agreement

#- The given command needs to be run with root user privileges or use the sudo command

$- The given command is run as a regular user

how to proceed

Create a file containing usernames

First, you need to create a file containing a list of usernames.

$ vi users-list.txt

In the file, one user per line, here is the style:

Username:Password:User ID:Group ID:User Info:Home Directory:Default Shell
Username:Password:User ID:Group ID:User Info:Home Directory:Default Shell
Username:Password:User ID:Group ID:User Info:Home Directory:Default Shell
...

Create user

After creating the file containing user information, use the newusers command to create the user.

# newusers users-list.txt

Check user account

Finally you can confirm that the users have been created correctly by viewing them in the /etc/passwd file:

# tail /etc/passwd