{"id":4559,"date":"2021-02-17T15:28:29","date_gmt":"2021-02-17T15:28:29","guid":{"rendered":"https:\/\/linuxways.net\/?p=4559"},"modified":"2021-02-17T15:28:40","modified_gmt":"2021-02-17T15:28:40","slug":"how-to-add-user-to-group-in-linux","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/ubuntu\/how-to-add-user-to-group-in-linux\/","title":{"rendered":"How to Add User to Group in Linux"},"content":{"rendered":"

Groups make it easy to give users the same security and access privileges for modifying a file or directory. A single user can be associated with several groups. In Linux, groups can be classified into two types that are primary and secondary groups. Primary groups are created during a user account creation while the secondary group can be one or more groups a user belongs to.<\/p>\n

In this post, we are going to describe how to add a user to a group in Linux OS. This post will also cover adding a user to multiple groups, removing a user from a group, changing a user’s primary group, creating, removing, and listing groups.<\/p>\n

Note<\/strong>: The procedure explained here has been tested on Ubuntu 20.04 LTS<\/strong>. However, the same procedure is also valid for other Linux distributions.<\/p>\n

Prerequisite<\/h2>\n

You will need sudo privileges or root access in order to add or remove a user from a group in Linux.<\/p>\n

How to Add an Existing User to a Group<\/h2>\n

When a new user is created, it is automatically added to a group of the same name. For instance, after creating a user named \u201ctin\u201d, the system will automatically create a new group named \u201ctin\u201d. Then this new user \u201ctin\u201d will be added to this new group named \u201ctin\u201d.<\/p>\n

If you want add a user to some other groups, the command is as follows:<\/p>\n

$ sudo usermod -a -G <group_name> <user_name><\/pre>\n
For instance, the below command will add an already existing user named \u201ctin\u201d to a secondary group named \u201csamba\u201d.<\/p>\n
$ sudo usermod -a -G samba tin<\/pre>\n
Enter the sudo password, after which a new user will be created and assigned a group.<\/p>\n
\"add<\/p>\n
How to Add an Existing User to Multiple Groups<\/h2>\n
If you want to add an existing user to multiple secondary groups, you can do so using a single command as follows:<\/p>\n
$ sudo usermod -a -G <group_name1,group_name2,group_name3> <user_name><\/pre>\n
For instance, the below command will add an existing user named \u201ctin\u201d to three groups named \u201csudo\u201d, \u201csamba\u201d, and \u201cadmin\u201d.<\/p>\n
$ sudo usermod -a -G sudo,samba,admin tin<\/pre>\n
\"add<\/p>\n
Create a New User and Add in a Group<\/h2>\n
If you need to create a new user and add it in a secondary group, here is the command to do so:<\/p>\n
$ sudo useradd -G <group_name> <user_name><\/pre>\n
For instance, the below command will create a new user named \u201ctitin\u201d and add it to the already existing group named \u201csamba\u201d.<\/p>\n
$ sudo useradd -G samba tintin<\/pre>\n
Enter the sudo password, after which a new user will be created and assigned a group.<\/p>\n
\"create<\/p>\n
How to Change the Primary Group of a User<\/h3>\n
To change the primary group of a user, the command is as follows:<\/p>\n
$ sudo usermod -g <group_name> <user_name><\/pre>\n
For instance, to change a user\u2019s named \u201ctin\u201d primary group to \u201csamba\u201d, the command would be:<\/p>\n
$ sudo usermod -g samba tin<\/pre>\n
\"change<\/p>\n
View the Groups a User is added To<\/h2>\n
After adding a user to a specific group, you can confirm it as follows:<\/p>\n
$ groups <user_name><\/pre>\n
It will show you the groups to which the user specified as <user_name> is added to. For instance, the below command shows that a user \u201ctin\u201d is added to two groups \u201ctin\u201d and \u201csamba\u201d. \"View<\/p>\n
How to Remove a User from a Group<\/h2>\n
For removing a user from a specific group, the syntax is as follows:<\/p>\n
$ sudo gpasswd -d <user_name> <group_name><\/pre>\n
For removing a user named \u201ctin\u201d from the group named \u201csamba\u201d, command would be:<\/p>\n
$ sudo gpasswd -d tin samba<\/pre>\n
\"remove<\/p>\n
How to Create a New Group<\/h2>\n
If you need to create a new group in Linux, you can do so by using the below command in Terminal:<\/p>\n
$ sudo groupadd group_name<\/pre>\n
Make sure to replace group_name<\/strong> with the group name you want to create.<\/p>\n
How to Remove a Group<\/h2>\n
If you need to remove a group from the Linux system, the syntax is as follows:<\/p>\n
$ sudo groupdel <group_name><\/pre>\n
For instance, to remove a group named \u201csamba\u201d, the command would be:<\/p>\n
$ sudo groupdel samba<\/pre>\n
View All Groups on the System<\/h2>\n
If you want to view all the groups on the Linux system, the command is as follows:<\/p>\n
$ getent group<\/pre>\n
This command will list all the groups on your system along with the user accounts which are member of these groups.<\/p>\n
For instance, the following output shows the list of groups along with their members like you can see users \u201csyslog\u201d and \u201ckbuzdar\u201d are members of group \u201cadm\u201d.<\/p>\n
\"view<\/p>\n
This was all about how to add a user to a group in Linux. If you want to learn about adding or removing a user on Linux OS, you can follow our guide on How to Add and Remove Users on Linux.<\/a><\/p>","protected":false},"excerpt":{"rendered":"
Groups make it easy to give users the same security and access privileges for modifying a file or directory. A single user can be associated with several groups.…<\/p>","protected":false},"author":4,"featured_media":4567,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[35],"class_list":["post-4559","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu","tag-linux"],"_links":{"self":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/4559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/comments?post=4559"}],"version-history":[{"count":0,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/4559\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media\/4567"}],"wp:attachment":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media?parent=4559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/categories?post=4559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/tags?post=4559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}