@Scrutinizer: true my command did print out numbers more than 23 in length.
the above command should work perfect as square brackets wont be in delimiters always so the awk command wont work in all occasions.
I am kinda confused as to why we are using single quotes in a grep expression. Cos I was reading the other day that single quotes remove any meaning from the special characters. Shouldn't we use double quotes?
Also the fact the you have used <,>. Are they working as a block to extract only 23 digits numbers/characters?
[..]
Hi dsid
The single quotes are better at protecting the regular expression from the shell, than double quotes, so that is why I prefer to use them. When you read that they remove any meaning from the special characters, they meant shell special characters, not regex special characters ...
\< and \> are word boundary operators and match the empty string at the beginning/end of a word respectively..
So if the 23 digits are enclosed by anything other than word characters ( [0-9A-Za-z_], or more precisely: [[:alnum:]_] , including the start or end of a line) then it will match the 23 digits.
Last edited by Scrutinizer; 03-20-2017 at 02:08 PM..
This User Gave Thanks to Scrutinizer For This Post:
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Discussion started by: Amrutha24
2 Replies
LEARN ABOUT SUSE
html::formattext
HTML::FormatText(3) User Contributed Perl Documentation HTML::FormatText(3)NAME
HTML::FormatText - Format HTML as plaintext
SYNOPSIS
require HTML::TreeBuilder;
$tree = HTML::TreeBuilder->new->parse_file("test.html");
require HTML::FormatText;
$formatter = HTML::FormatText->new(leftmargin => 0, rightmargin => 50);
print $formatter->format($tree);
DESCRIPTION
The HTML::FormatText is a formatter that outputs plain latin1 text. All character attributes (bold/italic/underline) are ignored.
Formatting of HTML tables and forms is not implemented.
You might specify the following parameters when constructing the formatter:
leftmargin (alias lm)
The column of the left margin. The default is 3.
rightmargin (alias rm)
The column of the right margin. The default is 72.
SEE ALSO
HTML::Formatter
COPYRIGHT
Copyright (c) 1995-2002 Gisle Aas, and 2002- Sean M. Burke. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
AUTHOR
Current maintainer: Sean M. Burke <sburke@cpan.org>
Original author: Gisle Aas <gisle@aas.no>
perl v5.12.1 2004-06-02 HTML::FormatText(3)