Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
Python and Tcl - public course schedule [here]
Private courses on your site - see [here]
Please ask about maintenance training for Perl, PHP, Lua, etc
 
Awk v Perl

"The AWK utility is a data extraction and reporting tool" - Wikipedia

"Perl was developed as a language to make report processing easier" - Wikipedia

So what's the difference?

Looking through all the lines of a file, report the 6th and 1st fields on each line that contains the string "pix" and report complete lines that contain the string "chamber":

In Awk:

  awk '/pix/{print $6,$1};/chamber/{print}' extra_log

Read more about awk [here] on our website or find a full manual [here] on the Gnu site.

In Perl:

  perl -na -e '/pix/ and print "$F[5] $F[0]\n"; /chamber/ and print' extra_log

Find out how to learn more about Perl [here] on our web site. Full Perl documentation can be found [here] on the official Perl web site.

The "trick" is that awk is a useful data extraction and reporting utility, but that Perl grew eclectically and is now so much more. The blogging software that I use to manage these articles is written in Perl, and I can't even imagine trying to do that in Awk. You can write a short utility in awk even shorter than in Perl, but Perl's extensibiity through subs, modules, and much much more means that it't there for the long haul of data analysis long after you've stretched the limits of awk.

Mind you ... if I have the off "one-liner" to write in haste to filter specific data from a log file, I'll probably use awk!
(written 2011-09-18)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A166 - Web Application Deployment - Linux Utilities
  [4682] One line scripts - Awk, Perl and Ruby - (2016-05-20)
  [4586] Extending your bash shell with aliases, functions and extra commands - (2015-11-28)
  [3902] Shell - Grep - Sed - Awk - Perl - Python - which to use when? - (2012-10-22)
  [3764] Shell, Awk, Perl of Python? - (2012-06-14)
  [2638] Finding what has changed - Linux / Unix - (2010-02-17)
  [2484] Finding text and what surrounds it - contextual grep - (2009-10-30)
  [2320] Helping new arrivals find out about source code examples - (2009-08-03)
  [2145] Using the internet to remotely check for power failure at home (PHP) - (2009-04-29)
  [1690] Conversion of c/r line ends to l/f line ends - (2008-06-28)
  [1366] awk - a powerful data extraction and manipulation tool - (2007-09-25)
  [1361] Korn shell course - (2007-09-22)
  [71] Comparators in Linux and Unix - (2004-10-03)
  [63] Almost like old times - (2004-09-26)

P701 - What is Perl?
  [1753] Perl v PHP, choosing the right language - (2008-08-14)


Back to
Perl and CGI - simple form, and monitoring script.
Previous and next
or
Horse's mouth home
Forward to
Needle in a haystack - finding the web server overload
Some other Articles
A threat in the post? Poor marketing practise from Smiletrain?
Apache Internal Dummy Connection - what is it and what should I do with it?
Checking all the systems on a subnet, using Expect and Tk
Needle in a haystack - finding the web server overload
Awk v Perl
Perl and CGI - simple form, and monitoring script.
Take the dog on a lead - do not carry her. Perl references.
Getting more log information from the Apache http web server
A demonstration of how many Python facilities work together
Pressing ^C in a Python program. Also Progress Bar.
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2019: 404 The Spa • Melksham, Wiltshire • United Kingdom • SN12 6QL
PH: 01225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/3446_Awk-v-Perl.html • PAGE BUILT: Sat May 27 16:49:10 2017 • BUILD SYSTEM: WomanWithCat