Question

Questions: Explain the following Linux commands

Show your work examples/outcome.

1. command used to locate /Home/ Directory…show the outcome

2. command used for October 2020

3. mv command and cat command

4. commands used- move to parent directory?

5. Explain why command is used ls -R?   What is the meaning of -R ?

6. Explain and describe two examples of how the touch command.

7. Explain what is the outcome of the commands ls -C ?

8. Explain command echo. example

9. command used to print contents of a directory, by default it lists contents of current working directory?

10. command q ? Explain

11. Command for copy? What commands will copy hello.txt to dir2 directory?

12. du command - meaning and example

13. Explain what each of the following commands will do

14. date -d “last week”

15. date -d “yesterday”

16. cal 2018

17. cal 08 2020

    cal -3

    date – “1974-01-04”

18. date command? Explain and example

19. command used to make a new directory?

20. free command

Need to answer one by one.

Answer 1

5. Explain why command is used ls -R?   What is the meaning of -R ?

Answer:

The command ls -R is used to ist all files recursively, descending down the directory tree from the given path.

• The Ls command in Unix is used to get the list of files and directories.
• ls -R option flag lists directory tree recursively.

Example:

6. Explain and describe two examples of how the touch command.

The touch command is primarily used to change file timestamps, but if the file (whose name is passed as an argument) doesn't exist, then the tool creates it.

Here is an example of how you create a file with touch or multiple files with touch.

Here is an example of chaning time stamps

7. Explain what is the outcome of the commands ls -C ?

Displays files in a columnar format

8. Explain command echo. example

echo is used to display a line of text. It is a very simple command which can be used in terminals and scripts.

Usage:

To print string "Hi, echo is executing" on console

echo "Hi, echo is executing"

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