Linux User Management: Revealing New User Operations

In Linux systems, adding new users is an important part of managing system permissions and security. This article will reveal the specific methods of adding users in the Linux operating system, including specific code examples and step instructions, to help readers quickly master the skills of adding users.

1. Use the adduser command to add a user. The

adduser command is the preferred tool for adding users in Debian and Ubuntu. This command will call useradd command and set some default values, simplifying the user addition process.

To add a new user, you can follow the steps below:

sudo adduser newuser

After executing the command, the system will prompt you to enter the new user’s password, name and other information. Follow the prompts to complete the settings and you will be successful. Add new user.

2. Use the useradd command to add a user

In addition to the adduser command, the useradd command is also a commonly used addition User mode. This command provides more option settings that can be customized according to needs.

To add a user using the useradd command, you can follow the steps below:

sudo useradd -m -s /bin/bash newuser

In this command, the -m option indicates the creation of a user. At the same time, create the user's home directory; the -s option indicates the specified user's shell. Through this command, you can set the user's permissions, home directory and other information as needed.

3. Use the passwd command to set the user password

Whether you use the adduser or useradd command to create a user, you need Set the user's password. This can be achieved through the passwd command:

sudo passwd newuser

After executing the command, the system will prompt you to enter a new password and confirm the password. After the setting is completed, the user's password will officially take effect.

4. Use the usermod command to modify user attributes

In addition to adding new users, sometimes it is also necessary to modify user attributes, such as changing the user's group, home directory, etc. At this time, you can use the usermod command:

sudo usermod -aG sudo newuser

In this command, the -aG option means to add the new user to the sudo group so that it has administrator rights. . User attributes can be flexibly managed through the usermod command.

5. Use the deluser command to delete a user

When a user is no longer needed, you can use the deluser command to delete the user and its related files :

sudo deluser newuser

After executing the command, the system will delete the user and his home directory to ensure system security and cleanliness.

Through the above introduction, readers can understand how to add users in the Linux system, and master how to use different commands to add users, set passwords, modify attributes, and delete users. Mastering these skills will help improve the efficiency and security of system management. I hope this article will be helpful to readers, and you are welcome to try and further learn Linux system management skills.

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