Very good SED tutorial with examples

SED Tutorial with examples

SED Tutorial

* The sed utility is an "editor"
* It is also noninteractive. This means you have to insert commands to be executed on the data at the command line or in a script to be processed.
* sed accepts a series of commands and executes them on a file (or set of files).
* sed fittingly stands for stream editor.
* It can be used to change all occurrences of "SAD" to "SED" or "New York" to "Newport."
* The stream editor is ideally suited to performing repetitive edits that would take considerable time if done manually.