Most people are probably familiar with text substitution, in some form. It’s when a particular bit of text in a document is replaced throughout with an alternate. In many packages this is carried out via a Find/Replace dialog box. My main use has been in a Unix/vi environment, where the friendly and intuitive command :1,$s/old text/new text/g finds every instance of “old text” and replaces with “new text.” The true nerd will appreciate that the command is compatible with ‘regular ...
