The shell does far more than run commands. Here’s how Bash expands your input behind the scenes so you can write cleaner, ...

There are quite a few ways to extract words and substrings from lines of text on a Linux system, replace them with other strings, select delimiters, and even get rid of white space at the beginning ...

I have a few lengthy XML documents. I want to transform them to HTML documents. For some XML elements, I have substrings in the text node that I want to emphasize. I do not have the actual substrings, ...