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Top Forums Shell Programming and Scripting Single quotes and double quotes Post 302354004 by vidyadhar85 on Wednesday 16th of September 2009 09:44:56 PM
Old 09-16-2009
PHEW!!!! here you go..
Code:
sed '/abc_def/s/'\''.*'\''/'\''\${abc_def}'\''/' filename

Enclosing characters in single quotes preserves the literal value of each character within the quotes. A single quote may not occur between single quotes, even when preceded by a backslash.
Therefore, you need to terminate the quoted expression, insert the escaped quote, and start a new quoted expression. The shell's quote removal does not add any extra spaces, so in effect you get string concatenation.

Last edited by vidyadhar85; 09-16-2009 at 10:53 PM..
 

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HTMLSPECIALCHARS_DECODE(3)						 1						HTMLSPECIALCHARS_DECODE(3)

htmlspecialchars_decode - Convert special HTML entities back to characters

SYNOPSIS
string htmlspecialchars_decode (string $string, [int $flags = ENT_COMPAT | ENT_HTML401]) DESCRIPTION
This function is the opposite of htmlspecialchars(3). It converts special HTML entities back to characters. The converted entities are: &amp;, &quot; (when ENT_NOQUOTES is not set), &#039; (when ENT_QUOTES is set), &lt; and &gt;. PARAMETERS
o $string - The string to decode. o $flags - A bitmask of one or more of the following flags, which specify how to handle quotes and which document type to use. The default is ENT_COMPAT | ENT_HTML401. Available $flags constants +--------------+---------------------------------------------------+ |Constant Name | | | | | | | Description | | | | +--------------+---------------------------------------------------+ | | | | ENT_COMPAT | | | | | | | Will convert double-quotes and leave single- | | | quotes alone. | | | | | | | | ENT_QUOTES | | | | | | | Will convert both double and single quotes. | | | | | | | |ENT_NOQUOTES | | | | | | | Will leave both double and single quotes uncon- | | | verted. | | | | | | | | ENT_HTML401 | | | | | | | Handle code as HTML 4.01. | | | | | | | | ENT_XML1 | | | | | | | Handle code as XML 1. | | | | | | | | ENT_XHTML | | | | | | | Handle code as XHTML. | | | | | | | | ENT_HTML5 | | | | | | | Handle code as HTML 5. | | | | +--------------+---------------------------------------------------+ RETURN VALUES
Returns the decoded string. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.4.0 | | | | | | | The constants ENT_HTML401, ENT_XML1, ENT_XHTML | | | and ENT_HTML5 were added. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 A htmlspecialchars_decode(3) example <?php $str = "<p>this -&gt; &quot;</p> "; echo htmlspecialchars_decode($str); // note that here the quotes aren't converted echo htmlspecialchars_decode($str, ENT_NOQUOTES); ?> The above example will output: <p>this -> "</p> <p>this -> &quot;</p> SEE ALSO
htmlspecialchars(3), html_entity_decode(3), get_html_translation_table(3). PHP Documentation Group HTMLSPECIALCHARS_DECODE(3)
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