Other Versions (The GNU Awk User’s Guide)
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B.5 Other Freely Available awk Implementations
It’s kind of fun to put comments like this in your awk code:
// Do C++ comments work? answer: yes! of course
— Michael Brennan
There are a number of other freely available awk
implementations. This section briefly describes where to get them:
Unix awk
Brian Kernighan, one of the original designers of Unix awk
, has made his implementation of awk
freely available. You can retrieve it from GitHub:
git clone git://github.com/onetrueawk/awk bwkawk
This command creates a copy of the Git repository in a directory named bwkawk
. If you omit the last argument from the git
command line, the repository copy is created in a directory named awk
.
This version requires an ISO C (1990 standard) compiler; the C compiler from GCC (the GNU Compiler Collection) works quite nicely.
To build it, review the settings in the makefile
, and then just run make
. Note that the result of compilation is named a.out
; you will have to rename it to something reasonable.
See section Common Extensions Summary for a list of extensions in this awk
that are not in POSIX awk
.
As a side note, Dan Bornstein has created a Git repository tracking all the versions of BWK awk
that he could find. It’s available at git://github.com/danfuzz/one-true-awk.
mawk
Michael Brennan wrote an independent implementation of awk
, called mawk
. It is available under the GPL (see section GNU General Public License), just as gawk
is.
The original distribution site for the mawk
source code no longer has it. A copy is available at http://www.skeeve.com/gawk/mawk1.3.3.tar.gz.
In 2009, Thomas Dickey took on mawk
maintenance. Basic information is available on the project’s web page. The download URL is http://invisible-island.net/datafiles/release/mawk.tar.gz.
Once you have it, gunzip
may be used to decompress this file. Installation is similar to gawk
’s (see section Compiling and Installing gawk on Unix-Like Systems).
See section Common Extensions Summary for a list of extensions in mawk
that are not in POSIX awk
.
mawk
2.0
In 2016, Michael Brennan resumed mawk
development. His development snapshots are available via Git from the project’s GitHub page.
awka
Written by Andrew Sumner, awka
translates awk
programs into C, compiles them, and links them with a library of functions that provide the core awk
functionality. It also has a number of extensions.
The awk
translator is released under the GPL, and the library is under the LGPL.
To get awka
, go to https://sourceforge.net/projects/awka.
The project seems to be frozen; no new code changes have been made since approximately 2001.
pawk
Nelson H.F. Beebe at the University of Utah has modified BWK awk
to provide timing and profiling information. It is different from gawk
with the --profile
option (see section Profiling Your awk Programs) in that it uses CPU-based profiling, not line-count profiling. You may find it at either ftp://ftp.math.utah.edu/pub/pawk/pawk-20030606.tar.gz or http://www.math.utah.edu/pub/pawk/pawk-20030606.tar.gz.
BusyBox awk
BusyBox is a GPL-licensed program providing small versions of many applications within a single executable. It is aimed at embedded systems. It includes a full implementation of POSIX awk
. When building it, be careful not to do ‘make install
’ as it will overwrite copies of other applications in your /usr/local/bin
. For more information, see the project’s home page.
The OpenSolaris POSIX awk
The versions of awk
in /usr/xpg4/bin
and /usr/xpg6/bin
on Solaris are more or less POSIX-compliant. They are based on the awk
from Mortice Kern Systems for PCs. We were able to make this code compile and work under GNU/Linux with 1–2 hours of work. Making it more generally portable (using GNU Autoconf and/or Automake) would take more work, and this has not been done, at least to our knowledge.
The source code used to be available from the OpenSolaris website. However, that project was ended and the website shut down. Fortunately, the Illumos project makes this implementation available. You can view the files one at a time from https://github.com/joyent/illumos-joyent/blob/master/usr/src/cmd/awk_xpg4.
goawk
This is an awk
interpreter written in the Go programming language. It implements POSIX awk
, with a few minor extensions. Source code is available from https://github.com/benhoyt/goawk. The author wrote a nice article describing the implementation.
jawk
This is an interpreter for awk
written in Java. It claims to be a full interpreter, although because it uses Java facilities for I/O and for regexp matching, the language it supports is different from POSIX awk
. More information is available on the project’s home page.
Libmawk
This is an embeddable awk
interpreter derived from mawk
. For more information, see http://repo.hu/projects/libmawk/.
Mircea Neacsu’s Embeddable awk
Mircea Neacsu has created an embeddable awk
interpreter, based on BWK awk. It’s available at https://github.com/neacsum/awk.
pawk
This is a Python module that claims to bring awk
-like features to Python. See https://github.com/alecthomas/pawk for more information. (This is not related to Nelson Beebe’s modified version of BWK awk
, described earlier.)
QSE awk
/@w
This is an embeddable awk
interpreter. For more information, see https://code.google.com/p/qse/.
QTawk
This is an independent implementation of awk
distributed under the GPL. It has a large number of extensions over standard awk
and may not be 100% syntactically compatible with it. See http://www.quiktrim.org/QTawk.html for more information, including the manual. The download link there is out of date; see http://www.quiktrim.org/#AdditionalResources for the latest download link.
The project may also be frozen; no new code changes have been made since approximately 2014.
Other versions
See also the “Versions and implementations” section of the Wikipedia article on awk
for information on additional versions.
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