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Top Forums Shell Programming and Scripting How to extract text from string using regular expressions Post 302247996 by ghostdog74 on Thursday 16th of October 2008 10:09:40 PM
Old 10-16-2008
Quote:
Originally Posted by jtung
sorry for not being more specific.

I have a file name that I want to extract the next 4 numbers after the _C
everything before and after that, I would like stripped off.

I tried using {filename:X:Y} but i don't think i'm on the latest ksh.

So i was reading up on the internet that I could use sed to accomplish this.

If there is another way to do this, please let me know.

thanks in advance!
Code:
# filename="/output/R34/2005_13_R34_C1042S_T83_CRFTXT_20081015.txt"
# echo $filename|sed 's/.*_C\(....\)S_.*/\1/'
1042

 

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PHP_STRIP_WHITESPACE(3) 						 1						   PHP_STRIP_WHITESPACE(3)

php_strip_whitespace - Return source with stripped comments and whitespace

SYNOPSIS
string php_strip_whitespace (string $filename) DESCRIPTION
Returns the PHP source code in $filename with PHP comments and whitespace removed. This may be useful for determining the amount of actual code in your scripts compared with the amount of comments. This is similar to using php -w from the commandline. PARAMETERS
o $filename - Path to the PHP file. RETURN VALUES
The stripped source code will be returned on success, or an empty string on failure. Note This function works as described as of PHP 5.0.1. Before this it would only return an empty string. For more information on this bug and its prior behavior, see bug report #29606. EXAMPLES
Example #1 php_strip_whitespace(3) example <?php // PHP comment here /* * Another PHP comment */ echo php_strip_whitespace(__FILE__); // Newlines are considered whitespace, and are removed too: do_nothing(); ?> The above example will output: <?php echo php_strip_whitespace(__FILE__); do_nothing(); ?> Notice the PHP comments are gone, as are the whitespace and newline after the first echo statement. PHP Documentation Group PHP_STRIP_WHITESPACE(3)
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