|ED(1)||General Commands Manual||ED(1)|
ed — line
TABLE OF CONTENTS
- LINE ADDRESSING
- REGULAR EXPRESSIONS
- SEE ALSO
ed utility is a line-based text
editor. It can be used create, display, modifiy, and otherwise manipulate
text files interactively or via a script. () Note that this man page is used
to note implementation details for this specific implementation. See
ed(1p) for a detailed description of
available commands and an overview of usage.
- Display simplified usage information.
- Use a “loose exit status”. Even if a command has an error (a
failed regex, for instance) exit successfully. Useful when using
edas an editor for git(1) or cron(8), where a failure exit status could discard all modifications, even if they were valid.
- Use string as the prompt string when in command mode. It can be toggled on and off with the P command.
- Suppress diagnostics (if enabled), byte counts displayed when reading and
writing, and the “!” prompt. Should be used if
ed's standard input is from a script.
- Output verbose error messages. Equivalent to the H command.
- Display version and copyright information.
- Specify a filename to read into the buffer. The default filename will be set to file. Essentially, it will act as if the e command had been provided on the given file before accepting commands from stdin.
Michael W Lucas, Ed Mastery: The Standard Unix Text Editor, Tilted Windmill Press, April 1, 2018.
This implementation of
ed conforms to
IEEE Std 1003.1-2008 (“POSIX.1”) in
almost all cases where said standard is applicable. However, the
violation of the standard: "Some historical implementations returned
exit status zero even if command errors had occurred; this is not allowed by
this volume of POSIX.1-2008."
Documentation and software by nytpu <firstname.lastname@example.org>
The upstream URL of this project is ⟨https://git.nytpu.com/ed⟩. Send suggestions, bugs, and other contributions to <email@example.com>. For help sending a patch through email, see ⟨https://git-send-email.io⟩.
This implementation of
ed does not
red restricted editor. It is the
opinion of the author that the usefulness of
obviated by modern security considerations and the fact that using
ed as the default editor on a contemporary system is
very unlikely. The author recommends using a
chroot(1) jail if preventing a user from
running commands or editing outside the current directory is desired. This
would then allow the user to use their editor of choice, such as
vi(1) as well as
|June 4, 2021||Linux 5.18.5-arch1-1|