OPS102 W2C1: Matrix and Basic Commands

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Questions and Answers

What is the significance of the tilde (~) character in the Linux default command prompt?

  • Represents the username of the current user
  • Shorthand for the user's home directory (correct)
  • Indicates administrator permissions
  • Displays the current working directory

What is the purpose of using the exit or logout commands when finished with Matrix?

  • To close the terminal window
  • To change the current working directory
  • To disconnect from Matrix and ensure nothing is left running (correct)
  • To display the contents of the current directory

What is the significance of the dollar sign ($) in the Linux default command prompt?

  • Represents the current working directory
  • Indicates a normal user (correct)
  • Indicates administrator permissions
  • Displays the username of the current user

What is the purpose of the command prompt string in a command-line interface?

<p>To provide useful information in a terse format (B)</p> Signup and view all the answers

What is the default prompt string for in the Windows CMD command-line interface?

<p>C:\Users\username: Indicates the home directory of the user (B)</p> Signup and view all the answers

What command is used to display the current date and time in Linux?

<p>date (B)</p> Signup and view all the answers

What is the topmost directory in the Linux file system hierarchy?

<p>/ (C)</p> Signup and view all the answers

What command is used to list information about files and folders in Linux?

<p>ls (B)</p> Signup and view all the answers

What command is used to clear the terminal screen and show the prompt in the first line in Linux?

<p>clear (D)</p> Signup and view all the answers

What command is used to display the folder and file hierarchy in a tree format in Linux?

<p>tree (B)</p> Signup and view all the answers

What is the command to change to the parent directory in Linux?

<p>cd .. (A)</p> Signup and view all the answers

What is the command to list the contents of the current directory in Windows?

<p>dir (C)</p> Signup and view all the answers

What does the 'ls -l' command do in Linux?

<p>Displays a detailed listing of the contents of the current directory (A)</p> Signup and view all the answers

What type of file is indicated by the 'd' character in the output of the 'ls -l' command in Linux?

<p>Directory (C)</p> Signup and view all the answers

What is the command to list the contents of the /bin directory in Linux?

<p>ls /bin (D)</p> Signup and view all the answers

What type of interface do users interact with on the matrix cluster?

<p>Command Line Interface (CLI) (C)</p> Signup and view all the answers

What is the operating system running on the matrix server?

<p>CentOS (a version of Linux) (C)</p> Signup and view all the answers

What is the purpose of the matrix cluster?

<p>To provide a cost-effective alternative to larger servers (A)</p> Signup and view all the answers

What is unique about the matrix cluster?

<p>It is a set of virtual machines (VM’s) on HyperV (D)</p> Signup and view all the answers

What operating systems are available on the lab computers?

<p>Both Windows OS and Linux OS (C)</p> Signup and view all the answers

What is the purpose of typing 'yes' when connecting to matrix from Windows CMD?

<p>To confirm the 'fingerprint' of matrix (B)</p> Signup and view all the answers

What is the command to use to connect to matrix from Windows CMD?

<p>ssh <a href="mailto:[email protected]">[email protected]</a> (B)</p> Signup and view all the answers

What will you see after successfully logging in to matrix from Windows CMD?

<p>A prompt from bash, such as '[senecausername@mtrx-node01pd ~]$' (C)</p> Signup and view all the answers

What should you do if you encounter an error message when connecting to matrix from Windows CMD?

<p>Read the error message and try to troubleshoot the issue (A)</p> Signup and view all the answers

What is the alternative to using the Windows CMD to connect to matrix?

<p>Downloading and installing a third-party SSH client program (B)</p> Signup and view all the answers

What is the default current working directory when a user opens a terminal?

<p>The home directory (D)</p> Signup and view all the answers

What type of paths can be used as arguments with the cd command?

<p>Absolute, relative, or relative to home (C)</p> Signup and view all the answers

What does the cd command do in a CLI?

<p>Changes the current working directory (B)</p> Signup and view all the answers

What happens when you use the cd command with two dots (..) as an argument?

<p>It navigates to the parent directory (A)</p> Signup and view all the answers

What is the significance of the current working directory in a CLI?

<p>It is the directory where the user is currently working (C)</p> Signup and view all the answers

What is a significant characteristic of Unix/Linux file names?

<p>They are case sensitive (B)</p> Signup and view all the answers

Why should you avoid using spaces in file names?

<p>They can lead to inconsistent results in command line interface (D)</p> Signup and view all the answers

What is the purpose of adopting a consistent file naming scheme?

<p>To help you find your files later (C)</p> Signup and view all the answers

What is the name of the top-level directory in the Linux file system hierarchy?

<p>/ (A)</p> Signup and view all the answers

What is the purpose of the /bin directory in Linux?

<p>It contains common system binaries (B)</p> Signup and view all the answers

What is the purpose of the /usr directory in Linux?

<p>It is called 'user', where user-related programs live (A)</p> Signup and view all the answers

Why is it important to understand file names before creating directories?

<p>Because it is important to adopt a consistent file naming scheme (A)</p> Signup and view all the answers

What is the purpose of the /home directory in Linux?

<p>It contains users' home directories (D)</p> Signup and view all the answers

What should you avoid using in file names besides spaces?

<p>Non-alphanumeric characters (A)</p> Signup and view all the answers

What is the benefit of using a consistent file naming scheme?

<p>It helps you find your files later (D)</p> Signup and view all the answers

The command to clear the terminal screen and show the prompt in the first line in Linux is _______.

<p>clear</p> Signup and view all the answers

The command to list information about files and folders in Linux is _______.

<p>ls</p> Signup and view all the answers

The command to display the folder and file hierarchy in a tree format in Linux is _______.

<p>tree</p> Signup and view all the answers

The topmost directory in the Linux file system hierarchy is _______.

<p>root</p> Signup and view all the answers

The command to print the name of the current user in Linux is _______.

<p>whoami</p> Signup and view all the answers

The command to _______________ to the parent directory is 'cd ..' in Linux.

<p>change</p> Signup and view all the answers

In Linux, the command _______________ is used to list the contents of the current directory.

<p>ls</p> Signup and view all the answers

The current working directory, also known as the _______________ directory, is the directory in which you are currently working.

<p>current</p> Signup and view all the answers

In Windows, the command _______________ is used to list the contents of the current directory.

<p>dir</p> Signup and view all the answers

The CLI command _______________ is used to list the contents of the /bin directory in Linux.

<p>ls /bin</p> Signup and view all the answers

The cd command is used to change to the ______ directory.

<p>parent</p> Signup and view all the answers

The cd command is used to change the ______.

<p>current working directory</p> Signup and view all the answers

The ______ command is used to list information about files and folders in Linux.

<p>ls</p> Signup and view all the answers

You can use the ______ character to exit a terminal session.

<p>ctrl-D</p> Signup and view all the answers

The prompt string in a command-line interface often contains useful information, but usually in a ______ format.

<p>terse</p> Signup and view all the answers

Most lab computers have ______ 10 installed on them.

<p>Windows</p> Signup and view all the answers

The matrix server consists of several computers running ______ (a version of Linux) all working together to form a cluster.

<p>CentOS</p> Signup and view all the answers

All registered students in this course have access to an account on ______.

<p>Matrix</p> Signup and view all the answers

The matrix cluster has been configured to allow users to only interact with the Linux OS using a ______ interface (CLI).

<p>command line</p> Signup and view all the answers

You will connect with ______ and practice Linux commands.

<p>matrix</p> Signup and view all the answers

The command to change the _______________ working directory is cd.

<p>current</p> Signup and view all the answers

In a CLI, we use the command _______________ to change our current working directory.

<p>cd</p> Signup and view all the answers

The argument to the cd command can be any type of _______________ (absolute, relative or relative to home).

<p>path</p> Signup and view all the answers

When you open a terminal, your home directory is your _______________ working directory.

<p>current</p> Signup and view all the answers

The cd .. command is used to change to the _______________ directory.

<p>parent</p> Signup and view all the answers

To connect to matrix from Windows, you can use the Windows _______ window to run the ssh command.

<p>CMD</p> Signup and view all the answers

You can download and install a third party _______ client program to connect to matrix.

<p>SSH</p> Signup and view all the answers

When connecting to matrix, you will use the same _______ and host names with any SSH client.

<p>user</p> Signup and view all the answers

To confirm the fingerprint of matrix, enter _______ and press the enter key.

<p>yes</p> Signup and view all the answers

After successfully logging in to matrix from Windows CMD, you should see a prompt from _______ something like this: [senecausername@mtrx-node01pd ~]$

<p>bash</p> Signup and view all the answers

Unix/Linux is ______ sensitive!

<p>case</p> Signup and view all the answers

Windows is not ______ sensitive for file names.

<p>case</p> Signup and view all the answers

A ______ file naming scheme will help you find your files later.

<p>consistent</p> Signup and view all the answers

Avoid non ______ characters, as they may have a special meaning to the system.

<p>alphanumeric</p> Signup and view all the answers

The ______ directory contains users’ home directories.

<p>home</p> Signup and view all the answers

The ______ directory is called “user”, where user related programs live.

<p>usr</p> Signup and view all the answers

The ______ directory is where system configuration files are located.

<p>etc</p> Signup and view all the answers

The ______ directory is the top of file system hierarchy.

<p>root</p> Signup and view all the answers

Avoid using ______ in file names – consider periods, hyphens, and underscores instead.

<p>spaces</p> Signup and view all the answers

The command to change to the ______ directory is 'cd ..' in Linux.

<p>parent</p> Signup and view all the answers

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ops102_2_1.pdf

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