How can I view all user groups in CentOS?

To view all user groups, you can use the following command:

1. View the contents of the /etc/group file using the cat command.
2. Display the contents of the /etc/group file for the user.
3. This will display all user groups and their corresponding users.
4. Use the getent command to view all user groups.
5. retrieve group information
6. This will list all registered user groups.
7. Process the /etc/group file using cut and sort commands, and display all user groups.
8. Sort the first field of the /etc/group file after removing any duplicates.
9. This will extract the user group fields from the file and sort them alphabetically.

Regardless of the method you choose, you will get a list of all user groups on the system.