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Full Discussion: remove an element from array
Top Forums Shell Programming and Scripting remove an element from array Post 302449637 by zaxxon on Tuesday 31st of August 2010 05:11:55 AM
Old 08-31-2010
The way you declare the array, you only have 1 element in it - you have to leave the double quotation marks away.

There is no functions available to delete elements directly from an array in ksh. You can either set it in a case of a match while looping (I did it without using it's index but treating it as a list) through the elements to "nothing" but you will have a gap in the array then. If you want to remove it and have the array elements filling up the gap, you can try something like this:

Code:
> set -A TABLENAME mirf roxar keke mirs
> echo ${TABLENAME[2]}
keke
> TMP=$(for A in ${TABLENAME[*]}; do echo $A| grep -v keke; done)
> echo $TMP     ## at this stage, TMP is no array since it's elements have no index, so we will make an array of it again with set -A 2 lines below:
mirf roxar mirs
> set -A TABLENAME $(echo $TMP)
> echo ${TABLENAME[2]}
mirs

 

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LEARN ABOUT PHP

array_rand

ARRAY_RAND(3)								 1							     ARRAY_RAND(3)

array_rand - Pick one or more random entries out of an array

SYNOPSIS

       mixed array_rand (array	$array, [int  $num = 1])

DESCRIPTION

	Picks one or more random entries out of an array, and returns the key (or keys) of the random entries.

PARAMETERS

	      o $array
		- The input array.

	      o $num
		- Specifies how many entries should be picked.

RETURN VALUES

	When  picking  only  one  entry,  array_rand(3)  returns the key for a random entry. Otherwise, an array of keys for the random entries is
       returned. This is done so that random keys can be picked from the array as well as random values. Trying to pick more elements  than  there
       are in the array will result in an E_WARNING level error, and NULL will be returned.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       |5.2.10	|						    |
       |	|						    |
       |	|  The	resulting  array of keys is no longer shuf- |
       |	| fled. 					    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      array_rand(3) example

	      <?php
	      $input = array("Neo", "Morpheus", "Trinity", "Cypher", "Tank");
	      $rand_keys = array_rand($input, 2);
	      echo $input[$rand_keys[0]] . "
";
	      echo $input[$rand_keys[1]] . "
";
	      ?>

SEE ALSO

       shuffle(3).

PHP Documentation Group 													     ARRAY_RAND(3)
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