The simplest grep command looks like the one shown below. This “find string in file” command will show all the lines in the file that contain the string, even when that string is only part of a longer ...

Quick: If you shout "regular expressions" in a crowd of Linux users, what happens? Answer: Everyone will tell you the right way to use them, and every answer will be different. Regular expressions -- ...

You may find yourself in a situation where you remember the content of a file but not its name. Linux offers various commands to help you find files based on specific text strings within them. By ...

I'm migrating thousands of files from an old content management system. The old CMS required the use of square brackets to denote URLs, and these files are littered with the pesky things.<BR><BR>I'm ...