If you’re just matching plain old letters and numbers and spaces, then all you need for the regular expression is the text you are matching against. The real power of regex, though, is that you ...

Manipulations afforded by RegEx include the ability to extract strings (URLs from HTML) and replace strings in a file (order numbers in an XML file). A better grasp of the RegEx language syntax ...

This article covers some grep and regex basics. There are generally two types of coffee ... grinds those beans with a conical burr grinder moments before brewing in any number of complicated methods.