Replacing a pattern with text in all files in a directory

- [Instructor] Welcome to the next video of Section Four,…Replacing a Pattern with Text in All Files in a Directory.…In the previous video, we've learned how to remove…a sentence in a file containing a word.…In this video, we'll learn how to replace…a particular text with a new text…in every file in a directory.…There will be numerous occasions when we will need…to replace a particular text with a new text…in every file in a directory.…An example would be changing a common URI…everywhere in a website source directory.…Using the shell for this is one of…the quickest methods out there.…From what we've learned up to now,…we can first use find to locate the files…we want to perform the text replacement on.…

Then we can use sed to do the actual replacement.…Let's say we want to replace the text, copyright,…with the word copyleft in all CPP files.…Let's see how it works.…We use find on the current directory…to find all the files of CPP and use print…to print a null separated list of files.…Recall that this helps if the file names…