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The GNU ed line editor
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This manual is for GNU ed (version 1.4, 10 July 2009).


   GNU ed is an 8-bit clean, more or less POSIX-compliant
implementation of the standard Unix line editor. These days,
full-screen editors have rendered `ed' mostly of historical interest.
Nonetheless, it appeals to a handful of aging programmers who still
believe that "Small is Beautiful".

Overview

Overview of the `ed' command

Introduction to Line Editing

Getting started with GNU `ed'

Invoking Ed

Command line interface

Line Addressing

Specifying lines/ranges in the buffer

Regular Expressions

Patterns for selecting text

Commands

Commands recognized by GNU `ed'

Limitations

Intrinsic limits of GNU `ed'

Diagnostics

GNU `ed' error handling

Problems

Reporting bugs

GNU Free Documentation License

How you can copy and share this manual

   Copyright (C) 1993, 2006, 2007, 2008, 2009 Free Software Foundation,
Inc.

   Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.