Linux Administration Basics Quiz and Flashcards

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Questions and Answers

What is the primary function of a shell in a Linux system?

To interpret and execute user commands (correct)
To manage memory allocation
To provide a graphical user interface
To handle network connectivity

What is the purpose of options in a Linux command?

To specify the user running the command
To specify the target of the command
To modify the behavior of the command (correct)
To provide additional information about the command

What is the function of the terminal?

To adjust the behavior of a command
To provide a display for output and a keyboard for input to a shell session (correct)
To specify the target that the command should operate on
To execute commands typed as strings

How can multiple commands be separated in a Linux shell?

Using a semicolon (;) (C) Signup and view all the answers

What is the purpose of the prompt in a command line?

To indicate that the shell is waiting for the user to type a command (B) Signup and view all the answers

What is the difference between a superuser and a regular user in Linux?

Superuser has administrative privileges, regular user does not (D) Signup and view all the answers

What is the purpose of the `man` command in Linux?

To locate documentation and research answers about commands (D) Signup and view all the answers

What is the command to display the list of previous commands?

Ctrl+k (B) Signup and view all the answers

What is the typical syntax of a Linux command?

command options arguments (C) Signup and view all the answers

What is the shortcut to re-execute a specific command in the history list?

! (D) Signup and view all the answers

What is the purpose of the GNOME workspaces?

To separate desktop screens with different application windows (D) Signup and view all the answers

How can you access the terminal?

Select Applications > Utilities > Terminal (C) Signup and view all the answers

What is the primary objective of this course?

To know about Linux OS and its basic operations (B) Signup and view all the answers

What is the main topic discussed in the first agenda?

Introduction to Linux (B) Signup and view all the answers

What is the primary focus of the course outline in section 2?

Managing Files From the Command Line (A) Signup and view all the answers

What is the main objective of the course regarding file system?

To understand fundamental file system layout and organization (A) Signup and view all the answers

What is the primary topic discussed in the course outline in section 5?

Introduction to Linux, Accessing the Command Line, and Managing Files From the Command Line (B) Signup and view all the answers

What is the main objective of the course regarding Linux system?

To install, log into a Linux system and run simple commands using the shell (D) Signup and view all the answers

What is the character that represents the root directory in the Linux file system hierarchy?

/ (C) Signup and view all the answers

What is the purpose of the /etc directory in the Linux file system hierarchy?

Store configuration files specific to the system (B) Signup and view all the answers

What is the main difference between the /root and /home directories in the Linux file system hierarchy?

The /root directory is for the administrative super user, while the /home directory is for regular users (A) Signup and view all the answers

What is the purpose of the /usr/bin directory in the Linux file system hierarchy?

Store user commands (C) Signup and view all the answers

What is the characteristic of file names in the Linux file system hierarchy?

Case-sensitive (A) Signup and view all the answers

What is the purpose of the /var directory in the Linux file system hierarchy?

Store variable data specific to the system that should persist between boots (D) Signup and view all the answers

What is the purpose of the globbing feature in Bash?

To manage large numbers of files using meta-characters (D) Signup and view all the answers

What is the function of the 'pwd' command?

To determine the absolute path name of the current location (D) Signup and view all the answers

What is the difference between absolute and relative paths?

Absolute paths are fully qualified, relative paths are not (A) Signup and view all the answers

What is the function of the 'cd' command with a '..' argument?

To move to the parent directory (A) Signup and view all the answers

What is the purpose of the 'mkdir' command with the '-p' option?

To create a new directory with parents if necessary (A) Signup and view all the answers

What is the meaning of the '~' meta-character in Bash?

The current user's home directory (D) Signup and view all the answers

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Study Notes

Introduction to Linux

Linux is an open-source operating system
Kernel and Shell are two main components of Linux
Linux Distributions are different versions of Linux

Accessing the Command Line

Can be accessed using local console or desktop
Using local console: log into Linux system on a local text console and run simple commands
Using desktop: log into Linux system using GNOME 3 desktop environment and run commands from a shell prompt in a terminal program

Shell Basics

Command line is a text-based interface to input instructions to a computer system
Shell is a program that provides the command line, e.g. Bash shell
Command syntax: [user@desktopX -]$ command Options arguments
Options modify a command's behavior, e.g. -a or --help
Arguments are file names or other data needed by the command

Managing Files From the Command Line

Linux file system hierarchy: all files are stored on a single-rooted inverted tree structure
File system begins at the root directory, represented by / (forward slash)
Names are case-sensitive, and paths are delimited by /
Users have their own directory (home directory)

Linux File System Hierarchy

/ is the root directory
/root is the home directory for the administrative super user, root
/home is where regular users store their personal data and configuration files
/etc contains configuration files specific to the system
/var contains variable data specific to the system that should persist between boots
/run contains runtime data for processes started since the last boot
/dev contains special device files used by the system to access hardware
/usr contains installed software, shared libraries, include files, and static read-only program data

Locating Files by Name

Absolute paths: fully qualified name, beginning at the root / directory and specifying each subdirectory
Relative paths: specifying only the path necessary to reach the file from the working directory
pwd displays the current working directory
cd changes the current working directory
cd .. moves to the parent directory
cd ~ moves to the current user's home directory
ls lists files and directories

Managing Files Using Command-Line Tools

cp copies files
mv moves or renames files
rm deletes files
mkdir creates directories
cp -r copies directories recursively
mv and cp can be used with multiple source files and directories

Matching File Names Using Path Name Expansion

Bash globbing feature: uses meta-characters to match file names
* matches any string of 0 or more characters
? matches any single character
~ represents the current user's home directory
[abc..] matches any one character in the enclosed class

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