09-16-2019
Someone told me not that long ago that the next big thing in computing are Regular Expressions.
Not needing such things in what I do using computers I thought, "Why, surely it is AI?"
Then I joined here and seeing you guys using them gobsmacked me. I had no idea how important BREs and EREs were until coming on here.
However a tool like that makes them easy to understand.
(Whilst in Perl mode I will learn how to use Perl's REs.)
Thanks Ravinder, great find...
This User Gave Thanks to wisecracker For This Post:
6 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
Please help me to understand the bold segments in the below regex.
Both are of same type whose meaning I am looking for.
find . \( -iregex './\{6,10\}./src' \) -type d -maxdepth 2
Output:
./20111210.0/src
In continuation to above:
sed -e 's|./\(*.\{1,3\}\).*|\1|g'
Output: ... (4 Replies)
Discussion started by: vibhor_agarwali
4 Replies
2. Shell Programming and Scripting
# echo "Teest string" | sed 's/e*/=>replaced=</'
=>replaced<=Teest string
So, in the above code , sed replaces at the start. does that mean sed using the pattern e* settles to zero occurence ? Why sed was not able to replace Teest string.
# echo "Teest string" | sed 's/e*//g'
Tst string
... (6 Replies)
Discussion started by: chidori
6 Replies
3. Shell Programming and Scripting
can someone please confirm for me if i'm right:
the pattern:
ORA-0*(600?|7445|4)
can someone give me an idea of all the entries the pattern above will grab from a database log file?
is it looking for the following strings?:
ORA-0600
ORA-7445
4) (2 Replies)
Discussion started by: SkySmart
2 Replies
4. Shell Programming and Scripting
Hi Guys,
Could you please kindly explain what exactly the below SED command will do ?
I am quite confused and i assumed that,
sed 's/*$/ /'
1. It will remove tab and extra spaces .. with single space.
The issue is if it is removing tab then it should be Î right ..
please assist.... (3 Replies)
Discussion started by: Nandy
3 Replies
5. Shell Programming and Scripting
Hi everyone,
This regex looks simple and yet it doesn't make sense how it's manipulating the output.
ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0c:49:c2:35:6v
inet addr:192.16.1.1 Bcast:192.168.226.255 Mask:255.255.255.0
inet6 addr:... (2 Replies)
Discussion started by: xcod3r
2 Replies
6. What is on Your Mind?
Our team just published this technical report on ResearchGate:
Virtualized Cyberspace - Visualizing Patterns & Anomalies for Cognitive Cyber Situational Awareness
ABSTRACT
ACKNOWLEDGMENTS
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License This... (0 Replies)
Discussion started by: Neo
0 Replies
LEARN ABOUT CENTOS
perl::critic::policy::codelayout::requiretidycode
Perl::Critic::Policy::CodeLayout::RequireTidyCode(3) User Contributed Perl Documentation Perl::Critic::Policy::CodeLayout::RequireTidyCode(3)
NAME
Perl::Critic::Policy::CodeLayout::RequireTidyCode - Must run code through perltidy.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway does make specific recommendations for whitespace and curly-braces in your code, but the most important thing is to adopt a
consistent layout, regardless of the specifics. And the easiest way to do that is to use Perl::Tidy. This policy will complain if you're
code hasn't been run through Perl::Tidy.
CONFIGURATION
This policy can be configured to tell Perl::Tidy to use a particular perltidyrc file or no configuration at all. By default, Perl::Tidy is
told to look in its default location for configuration. Perl::Critic can be told to tell Perl::Tidy to use a specific configuration file
by putting an entry in a .perlcriticrc file like this:
[CodeLayout::RequireTidyCode]
perltidyrc = /usr/share/perltidy.conf
As a special case, setting "perltidyrc" to the empty string tells Perl::Tidy not to load any configuration file at all and just use
Perl::Tidy's own default style.
[CodeLayout::RequireTidyCode]
perltidyrc =
SEE ALSO
Perl::Tidy
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3 2014-06-09 Perl::Critic::Policy::CodeLayout::RequireTidyCode(3)