81 lines
2.1 KiB
Markdown
81 lines
2.1 KiB
Markdown
---
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title: User management on Linux
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---
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#### Note: To run a command as `sudo` you must have sudo user account (Administrator)
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## How to Create a User
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#### Use the `adduser` or `useradd` command to add a new user to your system.
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```
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$ sudo adduser username
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```
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Be sure to replace `username` with the user that you want to create.
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#### Use the `passwd` command to update the new user's password.
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```
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$ sudo passwd username
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```
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A strong password is highly recommended!
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## How to Create a Sudo User
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To create a `sudo` user, you need to create a regular user first using the command above, then add this user to the group of `sudoers` using the `usermod` command.
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##### On Debian systems (Ubuntu/LinuxMint/ElementryOS), members of the `sudo` group have sudo privileges.
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```
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$ sudo usermod -aG sudo username
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```
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##### On RHEL based syatems (Fedora/CentOs), members of the `wheel` group have sudo privilages.
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```
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$ sudo usermod -aG wheel username
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```
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## How to Delete a User
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##### For Debian (Ubuntu)
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```
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$ sudo deluser username
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```
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##### For RHEL (Fedora/CentOS)
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```
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$ sudo userdel username
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```
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##### Creating groups and adding users
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```
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$ sudo groupadd editorial
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$ sudo usermod -a -G editorial username
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```
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#### Note: All above commands can be executed without sudo in `root` mode
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To switch to root on ubuntu, run `su -i` command followed by the password of the user logged in. Prompt changes to `#` insted of `$`
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##### On Debian systems (Ubuntu/LinuxMint/ElementryOS), members of the `sudo` group have sudo privileges.
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```
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$ sudo usermod -aG sudo username
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```
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## How to Create a Group
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To create a group, use the command `groupadd`
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```
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$ sudo groupadd groupname
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```
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## How to delete group
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To delete a group, use the command 'groupdel'
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```
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$ sudo groupdel grouname
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``
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#### References
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<a href='https://www.digitalocean.com/community/tutorials/how-to-add-and-delete-users-on-ubuntu-16-04' target='_blank' rel='nofollow'>Debian(Ubuntu)</a>
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<a href='https://www.digitalocean.com/community/tutorials/how-to-add-and-delete-users-on-a-centos-7-server' target='_blank' rel='nofollow'>RHEL (CentOS/Fedora)</a>
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