When you get to this point with your own grepping, which is probably a word I just made up, you can copy and paste the resulting data out of Terminal. If I then press Return on my keyboard, the Terminal window will fill up with the lines that match my search! Neat! ![]() Once I do that, the program’ll fill in the path to the file for me, easy-peasy. An easy way I can do this is by making sure to type a space after my search term, and then I’ll drag and drop the file I want to search onto the Terminal window, like so: ![]() So I’ve entered the grep command followed by my search term-“test”-and now I just have to tell Terminal which file to run things on. What I’ll do first is open Terminal, of course-it lives in my Applications > Utilities folder-and after it gives me a prompt to start (ending with a dollar sign), I’ll type this: If what I need to do is take all of the lines containing “test” and separate them from the lines containing everything else, that’s really simple for grep. Boy, I am just stupidly bad at coming up with random words. Here’s how it works: Let’s pretend this text file of mine has many hundreds of lines of data that I need to paw through. What this means in more simple terms is that you can use grep to pull lines that contain search terms out of a text file.
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