• Source: GNU Core Utilities

The GNU Core Utilities or coreutils is a package of GNU software containing implementations for many of the basic tools, such as cat, ls, and rm, which are used on Unix-like operating systems.
In September 2002, the GNU coreutils were created by merging the earlier packages textutils, shellutils, and fileutils, along with some other miscellaneous utilities. In July 2007, the license of the GNU coreutils was updated from GPL-2.0-or-later to GPL-3.0-or-later.
The GNU core utilities support long options as parameters to the commands, as well as the relaxed convention allowing options even after the regular arguments (unless the POSIXLY_CORRECT environment variable is set). This environment variable enables a different functionality in BSD.
See the List of GNU Core Utilities commands for a brief description of included commands.
Alternative implementation packages are available in the FOSS ecosystem, with a slightly different scope and focus (less functionality), or license. For example, BusyBox which is licensed under GPL-2.0-only, and Toybox which is licensed under 0BSD.




History


In 1990, David MacKenzie announced GNU fileutils.
In 1991, MacKenzie announced GNU shellutils and GNU textutils. Moreover, Jim Meyering became the maintainer of the packages (known now as coreutils) and has remained so since.
In 2002, Meyering announced GNU coreutils as a merger of the earlier packages textutils, shellutils, and fileutils, along with some other miscellaneous utilities.




See also



GNU Binutils
List of GNU Core Utilities commands
List of Unix commands
Toybox, a 0BSD licensed, all-in-one Linux command-line utility used in Android.
util-linux, a set of approximately 100 basic Linux system utilities not included in GNU Core Utilities, such as mount, fdisk, more, and kill.




Notes






References






External links


Official website
The Heirloom Toolchest - An alternative set of utilities
opensource.com article: gnu-core-utilities on 4 Apr 2018 by David Both (Correspondent)

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