Linux in a Nutshell, Fifth Edition

756

|

Chapter 10: The sed Editor

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

GNU sed Options

GNU sed accepts a number of additional command-line options, as well as long-

option equivalents for the standard options. The GNU sed options are:

-e cmd, --expression cmd

Use cmd as editing commands.

-f file, --file file

Obtain editing commands from file.

--help

Print a usage message and exit.

-i[suffix], --in-place[=suffix]

Edit files in place, overwriting the original file. If optional suffix is supplied,

use it for renaming the original file as a backup file. See the GNU sed online

Info documentation for the details.

-l len, --line-length len

Set the line length for the l command to len characters.

-n, --quiet, --silent

Suppress the default output; sed displays only those lines specified with the p

command or with the p flag of the s command.

--posix

Disable all GNU extensions. Setting POSIXLY_CORRECT in the environ-

ment merely disables those extensions that are incompatible with the POSIX

standard.

-r, --regex-extended

Use Extended Regular Expressions instead of Basic Regular Expressions. See

Chapter 7 for more information.

-s, --separate

Instead of considering the input to be one long stream consisting of the

concatenation of all the input files, treat each file separately. Line numbers

start over with each file, the address $ refers to the