Which of the following files defines Linux groups?

The /etc/group is a text file which defines the groups to which users belong under Linux and UNIX operating system.

What types of information does the ID command provide?

id command in Linux is used to find out user and group names and numeric ID’s (UID or group ID) of the current user or any other user in the server.

Which method or commands provide access to superuser privileges for authorized users?

The su commandThe switch_user commandLogging into the root accountThe sudo commandThe hash (#) symbolThe su command, the sudo command, and logging into the root account all provide access to superuser privileges for authorized users.

What information is stored in etc passwd choose all that apply?

The /etc/passwd file stores essential information, which required during login. In other words, it stores user account information. The /etc/passwd is a plain text file. It contains a list of the system’s accounts, giving for each account some useful information like user ID, group ID, home directory, shell, and more.

What keystroke deletes a line of text when using nano?

Here are a few tips and tricks that will make it easier for you to edit files with nano. Delete lines: To delete a line, move to beginning of line, then press Ctrl-k (hold down the CTRL key, and press the K key).

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What type of information can netstat provide?

The netstat command generates displays that show network status and protocol statistics. You can display the status of TCP and UDP endpoints in table format, routing table information, and interface information. The most frequently used options for determining network status are: s , r , and i .

Which operator is used to read the contents in a file in Linux?

On Unix-like operating systems, the cat command reads data from files, and outputs their contents. It is the simplest way to display the contents of a file at the command line.

What is sudo su?

The su command switches to the super user – or root user – when you execute it with no additional options. Sudo runs a single command with root privileges. … When you execute sudo command, the system prompts you for your current user account’s password before running command as the root user.

What is the sudo group?

What is a Sudo group? – Quora. , Use GNU/Linux as my main operating system. A group of superusers that can access the root account and be receive unlimited privileges. To have unlimited privileges, they have to access the root account and type the root password when needed.

What are sudo commands?

sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. … If a command is specified, it is passed to the shell for execution via the shell’s -c option. If no command is specified, an interactive shell is executed.

What does etc passwd contains?

The /etc/passwd file is a colon-separated file that contains the following information: User name. Encrypted password. User ID number (UID)

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Where is etc passwd in Linux?

The /etc/passwd file is stored in /etc directory. To view it, we can use any regular file viewer command such as cat, less, more, etc. Each line in /etc/passwd file represents an individual user account and contains following seven fields separated by colons (:).

Operating system secrets