In this tutorial we have covered all about Stream Editor (SED Command) in Unix Shell Scripting where we have seen Regular Expressions with SED Command, Replacing or substituting string using SED Command, Replacing the occurrence of a pattern in a line, Replacing all the appearance of the some pattern in a line, Replacing from nth occurrence to all occurrences in a line, Replacing the string on a specific line, Duplicating the replaced line with /p flag, Printing only the replaced lines, Deleting lines from a particular file and their different types. In the last lecture, we have seen Functions in Unix Shell Scripting. We have seen what is a function, Creating Functions, Pass Parameters to a Function, Returning Values from Functions, Nested Functions in detail with simple and easy to understand examples. 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. SQL Full Course Playlist-    • SQL Full Course   PYTHON Full Course Playlist-    • Python Full Course   Data Warehouse Playlist-    • Data Warehouse Full Course   Don't forget to like and follow us on our social media accounts which are linked below. Facebook- https://www.facebook.com/ampcode Instagram- https://www.instagram.com/ampcode_tutorials/ Twitter- https://twitter.com/ampcodetutorial Tumblr- ampcode.tumblr.com Channel Description- AmpCode provides you e-learning platform with a mission of making education accessible to every student. AmpCode will provide you tutorials, full courses of some of the best technologies in the world today.By subscribing to this channel, you will never miss out on high quality videos on trending topics in the areas of Big Data & Hadoop, DevOps, Machine Learning, Artificial Intelligence, Angular, Data Science, Apache Spark, Python, Selenium, Tableau, AWS , Digital Marketing and many more. #ampcode #unix #linux #shell_scripting #shell_commands #unix_manpage