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Full Discussion: Grep string with regex numeric characters
Top Forums Shell Programming and Scripting Grep string with regex numeric characters Post 302974746 by Don Cragun on Thursday 2nd of June 2016 04:53:12 PM
Old 06-02-2016
You could have used single quotes or double quotes in your RE, but they have to in matched pairs, and you can't include single quotes inside the double quotes unless you want those single quotes to be treated as literal characters to be matched. The command you showed us had an opening double quote, but no matching closing double quote.
 

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LEARN ABOUT MOJAVE

ppi::token::quote

PPI::Token::Quote(3)					User Contributed Perl Documentation				      PPI::Token::Quote(3)

NAME

       PPI::Token::Quote - String quote abstract base class

INHERITANCE

	 PPI::Token::Quote
	 isa PPI::Token
	     isa PPI::Element

DESCRIPTION

       The "PPI::Token::Quote" class is never instantiated, and simply provides a common abstract base class for the four quote classes.  In PPI,
       a "quote" is limited to only the quote-like things that themselves directly represent a string. (although this includes double quotes with
       interpolated elements inside them).

       The subclasses of "PPI::Token::Quote" are:

       '' - PPI::Token::Quote::Single
       "q{}" - PPI::Token::Quote::Literal
       "" - PPI::Token::Quote::Double
       "qq{}" - PPI::Token::Quote::Interpolate

       The names are hopefully obvious enough not to have to explain what each class is here. See their respective pages for more details.

       Please note that although the here-doc does represent a literal string, it is such a nasty piece of work that in PPI it is given the honor
       of its own token class (PPI::Token::HereDoc).

METHODS

   string
       The "string" method is provided by all four ::Quote classes. It won't get you the actual literal Perl value, but it will strip off the
       wrapping of the quotes.

	 # The following all return foo from the ->string method
	 'foo'
	 "foo"
	 q{foo}
	 qq <foo>

   literal
       The "literal" method is provided by ::Quote:Literal and ::Quote::Single.  This returns the value of the string as Perl sees it: without the
       quote marks and with "\" and "'" resolved to "" and "'".

       The "literal" method is not implemented by ::Quote::Double or ::Quote::Interpolate yet.

SUPPORT

       See the support section in the main module.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2001 - 2011 Adam Kennedy.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.18.2							    2011-02-25						      PPI::Token::Quote(3)
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