Grep searches one or more input files for lines containing a match to a specified pattern. By default, Grep outputs the matching lines.
Grep can be found on the main GNU ftp server: http://ftp.gnu.org/gnu/grep/ (via HTTP) and ftp://ftp.gnu.org/gnu/grep/ (via FTP). It can also be found on the GNU mirrors; please use a mirror if possible.
For other ways to obtain grep, please read How to get GNU software.
Documentation for Grep is available online, as is documentation for most GNU software. You may also find more information about Grep by running info grep or man grep, or by looking at /usr/share/doc/grep/, /usr/local/doc/grep/, or similar directories on your system. A brief summary is available by running grep --help.
Grep has the following mailing lists:
- bug-grep is used to discuss most aspects of Grep, including development and enhancement requests, as well as bug reports.
- grep-commit contains commit log entries, and you can subscribe to it to follow development more closely.
Security reports that should not be made immediately public can be sent directly to the maintainer. If there is no response to an urgent issue, you can escalate to the general security mailing list for advice.
Development of Grep, and GNU in general, is a volunteer effort, and you can contribute. For information, please read How to help GNU. If you'd like to get involved, it's a good idea to join the bug mailing list (see above).
- Test releases
- Trying the latest test release (when available) is always appreciated. Test releases of Grep are typically announced on the platform-testers mailing list.
- Information for GNU grep developers is a comprehensive source for all development-related matters. For development sources and other information, please see the Grep project page at savannah.gnu.org.
- Translating Grep
- To translate Grep's messages into other languages, please see the Translation Project page for Grep. If you have a new translation of the message strings, or updates to the existing strings, please have the changes made in this repository. Only translations from this site will be incorporated into Grep. For more information, see the Translation Project.
- Grep is currently being maintained by Jim Meyering. Please use the mailing lists for contact.
Grep is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.