Common examples of regular expressions determine for example if a given string is an email address or a phone number, or they can be used to verify if a password fulfills a certain complexity.

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 ...

Regular expressions — the things you feed to programs like grep — are a bit like riding a bike. It seems impossible until you learn to do it, and then it’s easy. Part of their bad reputation ...

If you’ve programmed in Perl or any other language with built-in regular-expression capabilities, then you probably know how much easier regular expressions make text processing and pattern ...

For this work with regular expressions, we will start with a browser-based tool. Below is a list of file names. We want to write a regular expression that captures parts of each string. Copy the text ...

What does regular expression actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

A simple cheat sheet of some common regular expressions used in SEO. Offers tips for htaccess, ScreamingFrog, and Google Analytics.

Name Regular Expressions The reflector DBM can be asked to search for a common name by means of a Basic UNIX regular expression applied to all common names known to the DBM. A regular expression ...

This article demonstrates some useful ways to use regular expressions with PPC, by adding new dimensions to our typical Account/Campaign/AdGroup hierarchy of data. Another use for regular ...

Even though regex has a checkered past, don't let this sway you from using it when you need to. When you need to leverage regex in PowerShell you'll be using the .NET regex engine. Each language has ...