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- GNU ed is a line-oriented text editor. It is used to create, display,
- modify and otherwise manipulate text files, both interactively and
- via shell scripts. A restricted version of ed, red, can only edit
- files in the current directory and cannot execute shell commands.
- Ed is the "standard" text editor in the sense that it is the original
- editor for Unix, and thus widely available. For most purposes,
- however, it is superseded by full-screen editors such as GNU Emacs
- or GNU Moe.
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