You can configure file permissions and other privileges by group. You can use the useradd or usermod commands to add a user to a group. Linux groups are organization units which are used to organize and administer user accounts in linux. Usergroups allow group writable directories to be easily maintained by placing the appropriate users in the new group, setting the set group id bit in the directory, and ensuring that all users. Create users in linux using the command line while many desktop linux distributions provide a graphical tool for creating users, it is a good idea to learn how to do it from the command line so that you can transfer your skills from one distribution to another without learning new user interfaces. There are two types of groups on linux operating systems. The useradd command creates a new user or updates default new user information. Debian linux uses adduser command to create users from the command line. Knowing how to add and remove users is one of the basic skills a linux user should know. How to create users and groups in linux from the command.
By default, each user in debian gnu linux is given a corresponding group with the same name. Users and groups admini strat ion in linux posted on october 11, 2006 by ruchi comments the user information is stored in the system etcpasswd and etcshadow files, and that additionally, group membership information is stored in the etc group file. How to create a user in debian linux using adduser command. Each user can have different permission level and specific settings for various command line and gui application. Use adduser command followed by the username to create a new user with the default options. Linux add user to group nixcraft nixcraft linux tips. The main purpose of groups is to define a set of privileges such as reading, writing, or executing permission for a given resource that can be shared among the users within the group. Changing the group a user is associated to is a fairly easy task, but not everybody knows the commands, especially to add a user to a secondary group.
This tutorial explains how to add and remove users on debian 9. As your host grows, you want to add new users, assign them special permissions, like sudo rights for example. Users and groups administration in linux debian admin. Heres a quick guide to adding users and groups, and then how to add users to groups, all from the command line on the linux platform. Adding and deleting users is one of the most basic tasks when starting from a fresh debian 10 server. Simple steps showing how to create a group, then add an existing user to that group, then delete the group. In this tutorial, we are going all the ways to add and delete users on debian 10 hosts. The usermod command modifies a user account, and it is useful to add a user to existing groups. This is on a system with no root password and only a single user pi with sudo privileges. Debian, as well as all other linux distributions is a multi user operating system. How to create users within linux using the useradd command.