Variables in Shell Scripting | Lecture #9 | Unix Shell Scripting Tutorial

In this tutorial we have covered all about Shell Variables in Unix Shell Scripting, Variable Types, Defining Variables, Accessing Variable Values, Read-only Variables, Unsetting Variables with some simple examples.

In the last lecture, we have seen Shell Scripting Basics where we have covered what is shell scripting, Shell Prompt, Shell Types(
Bourne shell (sh)

Korn shell (ksh)

Bourne Again shell (bash)
POSIX shell (sh)
The different C-type shells follow −
C shell (csh)
TENEX/TOPS C shell (tcsh)

)
also what is Shell Script and we have created and executed our first shell script.

Please find the step by step procedure to install Cygwin-

2. Run the application from your local hard drive.

3. Choose the next button on first screen.

4. Select "Install from Internet" option and click next button.

5. Give a preferred installation directory and click next button.

6. Give a temporary installation directory and click next button.

7. Select "Direct Connection" and click next button.

8. Give a temporary directory and click next button.

9. Select "Direct Connection" and click next.

10. Select a download site and click next.

11. Select the packages you want to install and click next.

12. Simply select another server and continue the installation process.

13. Once installation is completed, click Finish and continue with the Setup section.

If you find any difficulties, please let me know in the comments below.

But first, you should be aware of Structured Query Language (SQL) which we have already covered. Please find the link for FULL COURSE OF SQL.

SQL Full Course Playlist-

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Data Warehouse Playlist-

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[kmurali]

After setting the variable as readonly, what is the way to bring it back to write mode again?

[shrutipatil]

Simple, helpful and easy to understand for beginners...👍👍

[theHustler]

Thank u so much bhaiya ❤ for this video, very helpful playlist

[sohampatel-bmgt]

from readonly how can we bring it to write mode again?