'''S'''tream '''Ed'''itor A program that parses files or standard input, changes it according to a given set of rules, mostly based on Regular Expressions, and sends the new data to standard output. Unbelievably fast. Erik Pemente keeps a very good amount of info and links in this page: http://www.student.northpark.edu/pemente/sed/ A spirited introduction to sed programming appears here [http://www.grymoire.com/Unix/Sed.html#uh-0]. There is a page dedicated to the Tcl's implementation of [Regular Expressions] on this wiki. Tcl uses [ARE]. sed uses Basic and Extended Regular Expressions only. ---- [[ [Category Acronym] | [Category Application] ]]