If you are working on a Linux system, you may need to list all user groups of the system at some point. User groups are used to organize users and to set file permissions. Here’s how you can easily list all user groups on Linux.

Using the /etc/group File:

One way to list all user groups is by looking at the /etc/group file. This file contains a list of all the groups on the system.

– Open a terminal window on your Linux system.

– Type the following command: cat /etc/group

– Press Enter.

This command will list all the user groups on your system in alphabetical order. You can scroll through the list to find the group you are looking for.

Using the “cut” Command:

Another way to list all user groups is by using the cut command. This command allows you to cut specific parts of a file and display it on the screen.

– Open a terminal window on your Linux system.

– Type the following command: cut -d: -f1 /etc/group

– Press Enter.

This command will list all the user groups on your system, each on a separate line.

Using the “getent” Command:

The getent command is used to get entries from the system’s database. In this case, we can use it to list all user groups on the system.

– Open a terminal window on your Linux system.

– Type the following command: getent group

– Press Enter.

This command will list all the user groups on your system in alphabetical order.

Using the “awk” Command:

The awk command is a versatile command that can be used for various tasks. Here, we can use it to list all user groups on the system.

– Open a terminal window on your Linux system.

– Type the following command: awk -F: ‘/^sudo/{print $1}’ /etc/group

– Press Enter.

This command will list all the groups that have sudo access on your system.