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Full Discussion: How to direct awk output to expr?
Top Forums Shell Programming and Scripting How to direct awk output to expr? Post 69912 by jvander on Thursday 21st of April 2005 01:13:14 PM
Old 04-21-2005
How to direct awk output to expr?
Is there any way to combine the following two statements into one? I can't figure out how to get expr to take input from the output of the awk call - I've tried piping the output of the awk call into the expr call, and tried using a 'Here' document, nothing seems to work.

export CNT=`wc -l ${QV_FILENAME} | awk '{print $1}'`
export FILE_RECCNT=`expr ${CNT} - 2`

Thanks for any help that anyone can offer.
 

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LEARN ABOUT PHP

hw_getobject

HW_GETOBJECT(3) 							 1							   HW_GETOBJECT(3)

hw_GetObject - Object record

SYNOPSIS

       mixed hw_getobject (int	$connection, mixed  $objectID, [string	$query])

DESCRIPTION

	Gets an object record. If the second parameter is an array of integer the function will

PARAMETERS

	      o $connection
		- The connection identifier.

	      o $objectID
		- The object identifier, or an array of identifiers.

	      o $query
		- The query string has the following syntax:

	      <expr> ::= "(" <expr> ")" |
			 "!" &lt;expr> |	  /* NOT */
			 <expr> "||" <expr> |  /* OR */
			 <expr> "&amp;&amp;" <expr> |  /* AND */
			 <attribute> <operator> <value>

	      <attribute> ::= /* any attribute name (Title, Author, DocumentType ...) */

	      <operator> ::= "=" |    /* equal */
			     "<" |    /* less than (string compare) */
			     ">" |    /* greater than (string compare) */
			     "~"      /* regular expression matching */

RETURN VALUES

	Returns the object record for the given object ID if the second parameter is an integer.

	If  the  second parameter is an array of integer the function will return an array of object records. In such a case the last parameter is
       also evaluated which is a query string.

SEE ALSO

       hw_getandlock(3), hw_getobjectbyquery(3).

PHP Documentation Group 													   HW_GETOBJECT(3)
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