If you consider yourself a good cook, you may or may not know how to make a souffle or baklava. But there are certain things you probably do know how to do that form the basis of many recipes. For ...

Once you get the hang of regular expressions, you'll find them invaluable. The trick is to start small - I'll show you how. Quick: If you shout “regular expressions” in a crowd of Linux users, what ...

These are the formal rules for forming basic UNIX regular expressions. For some simple examples, skip to Simple Examples. The rules come from the Solaris 7 regexp(5) manual page. The I2A2 reflector ...

Imagine you are looking for a name in a telephone directory, but you can't remember its exact spelling. You can spend ages searching through all the possible combinations, unless you have a tool that ...

Bash has quietly made scripting on Unix systems a lot easier with its own regular expressions. If you're still leaning on grep and sed commands to get your scripts to do what you need from them, maybe ...

In this tutorial, you'll learn about the grep family in depth, including the syntax of regular expressions in many UNIX utilities. You'll also find out more about the stream editor, sed, as well as ...