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Full Discussion: Whats wrong with this line?
Top Forums Shell Programming and Scripting Whats wrong with this line? Post 302214577 by looza on Monday 14th of July 2008 09:58:00 AM
Old 07-14-2008
$I_FILE="ifile";
where ifile looks like this
4294967295,0,3,2103159,54668771,54668771,0,1,566547,8770,0,384,228,18,12
4294967295,0,4,2103160,54668772,54668772,0,1,566548,8770,0,384,228,18,12
4294967295,1,0,2103161,54668773,54668773,0,3,566549,8770,0,384,228,18,12
4294967295,2,0,2103162,54668774,54668774,0,5,566550,8770,0,384,228,18,12

I need to filter out the first and the ninth column:
4294967295 566547
4294967295 566548
4294967295 566549
4294967295 566550

hence:
system ("awk -F, '{print \$1, \$9}' \$I_FILE | sed '\/^\$\/d' > O_FILE")

I dont *have* to use awk/sed. If there is a simpler way with Perl, that would work too.
Thanks!
 

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LEARN ABOUT PHP

decbin

DECBIN(3)								 1								 DECBIN(3)

decbin - Decimal to binary

SYNOPSIS

       string decbin (int  $number)

DESCRIPTION

	Returns a string containing a binary representation of the given $number argument.

PARAMETERS

	      o $number
		- Decimal value to convert

	      Range of inputs on 32-bit machines

	      +-------------------------------------+--------------------------------------+---+
	      | 	 positive $number	    |					   |   |
	      | 				    |					   |   |
	      | 				    |		negative $number	   |   |
	      | 				    |					   |   |
	      | 				    |		  return value		   |   |
	      | 				    |					   |   |
	      +-------------------------------------+--------------------------------------+---+
	      | 		0		    |					   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 				    |		     |T{ 0		   |   |
	      | 				    |					   |   |
	      | 		1		    |					   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 				    |		     |T{ 1		   |   |
	      | 				    |					   |   |
	      | 		2		    |					   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 				    |		     |T{ 10		   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 	    2147483646		    |					   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 				    | |T{ 1111111111111111111111111111110  |   |
	      | 				    |					   |   |
	      |2147483647 (largest signed integer)  |					   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 				    | |T{  1111111111111111111111111111111 |   |
	      | 				    | (31 1's)				   |   |
	      | 				    |					   |   |
	      | 	    2147483648		    |					   |   |
	      | 				    |					   |   |
	      | 				    |		  -2147483648		   |   |
	      | 				    |					   |   |
	      | 				    |	10000000000000000000000000000000   |   |
	      | 				    |					   |   |
	      | 				    |					   |   |
	      | 	    4294967294		    |					   |   |
	      | 				    |					   |   |
	      | 				    |		       -2		   |   |
	      | 				    |					   |   |
	      | 				    |	11111111111111111111111111111110   |   |
	      | 				    |					   |   |
	      |4294967295 (largest  unsigned  inte- |					   |   |
	      |ger)				    |					   |   |
	      | 				    |					   |   |
	      | 				    |		       -1		   |   |
	      | 				    |					   |   |
	      | 				    | 11111111111111111111111111111111 (32 |   |
	      | 				    | 1's)				   |   |
	      | 				    |					   |   |
	      +-------------------------------------+--------------------------------------+---+
	      Range of inputs on 64-bit machines

	      +-------------------------------------+------------------------------------------------------------------+---+
	      | 	 positive $number	    |								       |   |
	      | 				    |								       |   |
	      | 				    |			      negative $number			       |   |
	      | 				    |								       |   |
	      | 				    |				return value			       |   |
	      | 				    |								       |   |
	      +-------------------------------------+------------------------------------------------------------------+---+
	      | 		0		    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    |				   |T{ 0			       |   |
	      | 				    |								       |   |
	      | 		1		    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    |				   |T{ 1			       |   |
	      | 				    |								       |   |
	      | 		2		    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    |				   |T{ 10			       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      |        9223372036854775806	    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    | |T{							       |   |
	      | 				    | 111111111111111111111111111111111111111111111111111111111111110  |   |
	      | 				    |								       |   |
	      |9223372036854775807 (largest  signed |								       |   |
	      |integer) 			    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    | |T{							       |   |
	      | 				    | 111111111111111111111111111111111111111111111111111111111111111  |   |
	      | 				    | (63 1's)							       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      |      |T{ -9223372036854775808	    |								       |   |
	      | 				    |								       |   |
	      | 				    | 1000000000000000000000000000000000000000000000000000000000000000 |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 	      |T{ -2		    |								       |   |
	      | 				    |								       |   |
	      | 				    | 1111111111111111111111111111111111111111111111111111111111111110 |   |
	      | 				    |								       |   |
	      | 				    |								       |   |
	      | 	      |T{ -1		    |								       |   |
	      | 				    |								       |   |
	      | 				    | 1111111111111111111111111111111111111111111111111111111111111111 |   |
	      | 				    | (64 1's)							       |   |
	      | 				    |								       |   |
	      +-------------------------------------+------------------------------------------------------------------+---+
RETURN VALUES

	Binary string representation of $number

EXAMPLES

       Example #1

	      decbin(3) example

	      <?php
	      echo decbin(12) . "
";
	      echo decbin(26);
	      ?>

	      The above example will output:

	      1100
	      11010

SEE ALSO

       bindec(3),  decoct(3), dechex(3), base_convert(3), printf(3), using %b, %032b or %064b as the format , sprintf(3), using %b, %032b or %064b
       as the format .

PHP Documentation Group 														 DECBIN(3)
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