Users and Groups

Chester Wyke December 07, 2022 Updated: April 15, 2025 #debian
debian (Series)
MAC Address Change
Set permissions recursively on directory structure
Touch (Set file modified date)
Android Apps on Linux
Blacklist Module
Calender Notifications Popup Disable
CUPS PDF Printer
gping
Hide Mounts
Nautilus
Power
Smartgit
Video Cards
Snapcraft
Acrobat Reader
Audio
Shortcuts (Important)
DNS
Mounting Drives
Setup Network Shares
Cron
Startup
Users and Groups
Paths to remember
Manually Removing Old Kernels
Set Icon for Application
Strange Problems and Fixes
Redirecting stderr
Extensions
Ubuntu Software
Show Seconds on Clock Display
Create Bootable Flash Drive
Compressed Files
services systemd (unit)
SCP
SSH
Updating
Useful commands
Firewall
View Whitespace
OpenVPN
PPP logs
MAN
Terminal
sed
Characters
zsh
Links between files
7z encrypted file
Wayland or x11?
Delete Old Files Automatically

Source: https://www.howtogeek.com/50787/add-a-user-to-a-group-or-second-group-on-linux/

Users

Create a new user

sudo adduser username

Make a user admin

sudo usermod -a -G sudo username

List all users

id
cat /etc/passwd

Delete user

sudo userdel username

Prevent a user from showing in the list of users at the GUI logon prompt

Source: https://linuxconfig.org/disabling-user-logins-to-linux-system

Based on how the other system user that didn’t show up worked and matched with the command found in the source link.

sudo usermod username -s /sbin/nologin

Groups

Create a group

sudo groupadd groupname

Add user to a group

sudo usermod -a -G groupname username

List all groups

groups
cat /etc/group
Series
MAC Address Change
More...
Set permissions recursively on directory structure
Touch (Set file modified date)
Android Apps on Linux
Blacklist Module
Calender Notifications Popup Disable
CUPS PDF Printer
gping
Hide Mounts
Nautilus
Power
Smartgit
Video Cards
Snapcraft
Acrobat Reader
Audio
Shortcuts (Important)
DNS
Mounting Drives
Setup Network Shares
Cron
Startup
Users and Groups
Paths to remember
Manually Removing Old Kernels
More...
Set Icon for Application
Strange Problems and Fixes
Redirecting stderr
Extensions
Ubuntu Software
Show Seconds on Clock Display
Create Bootable Flash Drive
Compressed Files
services systemd (unit)
SCP
SSH
Updating
Useful commands
Firewall
View Whitespace
OpenVPN
PPP logs
MAN
Terminal
sed
Characters
zsh
Links between files
7z encrypted file
Wayland or x11?
Delete Old Files Automatically
Index
Users
- Create a new user
- Make a user admin
- List all users
- Delete user
- Prevent a user from showing in the list of users at the GUI logon prompt
Groups
- Create a group
- Add user to a group
- List all groups