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UNIX in a Nutshell: System V Edition

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UNIX Commands
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The standard text editor. If the named file does not exist, ed creates it; otherwise, the existing file is opened for editing. As a line editor, ed is generally no longer used because vi and ex have superseded it. Some utilities, such as diff , continue to make use of ed. Encryption can be used only in the United States.



Same as -x , but assume file began in encrypted form.

-p string

Set string as the prompt for commands (default is * ). The P command turns the prompt display on and off.


Suppress character counts, diagnostics, and the ! prompt for shell commands.


Supply a key to encrypt or decrypt file using crypt .

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