General Knowledge

Question 1

What is open source

Answer 1

Open source is a term that originally referred to open source software (OSS). Open source software is code that is designed to be publicly accessible—anyone can see, modify, and distribute the code as they see fit

Question 2

What is version control

Answer 2

version control is a class of systems responsible for managing changes to computer programs, documents, large web sites, or other collections of information. Version control is a component of software configuration management.

Question 3

Command to copy and paste on the terminal

Answer 3

Ctrl A+V

Question 4

What is the shell command

Answer 4

The shell command is the Linux command line interpreter.it provides an interface between the user and the kernel and executes programs called commands

Question 5

GUI and CLI

Answer 5

Graphical user interface & Command line interface

Question 6

What does “bash” stands for

Answer 6

Bourne again shell

Question 7

What is bash

Answer 7

Bash is an enhanced version of the original unix shell program which acts as the shell program.
Bash was designed by (Steven Bourne)

We have other shell programs available for Linux systems such as ksh, tcsh, and zsh.

Question 8

What’s a terminal

Answer 8

A terminal is a program called a terminal emulator…it opens a window that lets you interact with the shell. There are a lot of different terminal emulator we can use on the Linux distribution.

Question 9

What is a pathname

Answer 9

A pathname is the route we take along the branches of the tree to get to the desired working directory we want.

Question 10

A pathname is divided into two which are_______ and ______

Answer 10

Absolute pathname & relative pathname

Question 11

What is an absolute pathname

Answer 11

It begins with the root directory and follows it branch by branch until the path to the desired directory is completed.

Question 12

What is a relative pathname

Answer 12

A relative pathname starts from the working directory.

Question 13

What are file permissions

Answer 13

A file permission control the action that can be taken on a file.

Question 14

Name the file permissions categories

Answer 14

1. Owner
2. Group
3. Others

Question 15

List the file permissions access type

Answer 15

1.read
2. Write
3. Execute
4. Delete

Question 16

When you see “RWX” what does it stand for_____

Answer 16

Read, write and execute

Question 17

What command to list files in long format

Answer 17

Ls -l

Question 18

What am I to see when I list files in long format

Answer 18

1. The file name
2. The modification time
3. Size in bytes
4. Group
   5.owner
5. File permissions

Question 19

ASCII stands for ____

Answer 19

American standard code for information interchange

Question 20

What are the commands that “less” will accept when viewing a text file

Answer 20

1. Arrow up
2. Arrow down
3. G: got to the end of the text file
4. 1G : go to the beginning of the text file
5. /characters: search forward for an occurrence of the specified character
6. n : repeat the previous search
7. h : to display a complete list of less commands
   8 q : to quit it

Question 21

What is the command to be able to know what type of file this is ____

Answer 21

file text_name

Question 22

What is the full meaning of FHS

Answer 22

File system hierarchy standard

Question 23

What is a shebang

Answer 23

It is a character sequence consistening of a character sign(#) and an exclamation mark (!) at the beginning of a script.

Question 24

!/bin/sh___

#!/bin/bash_____
#!/usr/bin/pwsh___
#!/usr/bin/env python3 ___
#!/bin/false ___

Answer 24

1.Bourne shell
2. Bash shell
3. Power shell
4. With python interpreter using the env program search path to find it
5. Do nothing

Question 25

Chmod is used to

Answer 25

Modify the file access rights

Question 26

“Su” is for

Answer 26

Temporarily become the superuser and ‘sudo’ can be used to temporarily become the superuser

Question 27

What is “chown” for

Answer 27

Change file ownership

Question 28

What is “chgrp” used for

Answer 28

Change a files group ownership

Question 29

File permissions

Answer 29

On a Linux systems, each file and directory is a assigned access rights to owners l, the members of groups related users and every other person’s.
The rights can be assigned to read a file, write a file and execute a file

Question 30

What is the command used to changed the permission of a file or directory

Answer 30

Chmod

Question 31

What is echo

Answer 31

It is a build in shell command that prints out it’s text arguments on standard output.