Скачать или смотреть Unix Environment Variables | Lecture #5 | Unix Shell Scripting Tutorial

In this lecture we have covered all about the Unix environment. A very important concept which is defined by environment variables. Some of them are defined by system, some by you, and others by the shell, or any program that loads another program.

We have also covered Setting the Terminal Type, Setting the PATH, PS1 and PS2 Variables, Environment Variables (such as DISPLAY, PATH, PWD, RANDOM, TERM, HOME, IFS)

In the last lecture, we have covered File Permissions in linux. in this we have seen Owner permissions, Group permissions, Other (world) permissions. also File Access Modes (such as Read, Write and Execute), The Permission Indicators, Directory Access Modes.


And we have learned how to Change Permissions by using chmod command (Using chmod in Symbolic Mode, Using chmod with Absolute Permissions)

Please find the step by step procedure to install Cygwin-


1. Download the file setup.exe from site www.cygwin.com.

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.


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