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Top Forums Shell Programming and Scripting Array Declaration and For Loop Post 302136122 by 33junaid on Saturday 15th of September 2007 07:37:50 AM
Old 09-15-2007
Array Declaration and For Loop

I am just stucked in syntax.This is more like a array and for loop problem.

I want to use ls -l command and get filezise and filename of all filenames in the directory in an array (say array#1).
After 2 minutes of sleep, i want to get the same information in another array (say array#2).

The command ls -l | awk '{print $9 " " $5}' prints all the filenames and then space and then the filezise of that file. I want to compare each array value and then get those filenames which have same size in both arrays.



For example:
Declare Array1......
>ls -l | awk '{print $9 " " $5}'
File1 Size1 (copy this value in array1[0])
File2 Size2 (copy this value in array1[1])
File3 Size3 (copy this value in array1[2])
FileN SizeN (copy this value in array1[N])

After sleep 120, make another array called array2 and then
Declare array2.......
>ls -l | awk '{print $9 " " $5}'
File1 Size1 (copy this value in array2[0])
File2 Size2 (copy this value in array2[1])
File3 Size3 (copy this value in array2[2])
FileN SizeN (copy this value in array2[N])

May be we can get new files after 2 minutes but we have to get all the rows in it.

Then using a for loop, compare each value of array1 with array2 and where array1 value=array2 value, I have to get the value of array1 first argument (i.e. File name itself not the whole string which will include the filesize which is seperated by space).

Please convert this to correct synatx in shell.Thanks.
 

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ARRAY_REPLACE_RECURSIVE(3)						 1						ARRAY_REPLACE_RECURSIVE(3)

array_replace_recursive - Replaces elements from passed arrays into the first array recursively

SYNOPSIS
array array_replace_recursive (array $array1, array $array2, [array $...]) DESCRIPTION
array_replace_recursive(3) replaces the values of $array1 with the same values from all the following arrays. If a key from the first array exists in the second array, its value will be replaced by the value from the second array. If the key exists in the second array, and not the first, it will be created in the first array. If a key only exists in the first array, it will be left as is. If several arrays are passed for replacement, they will be processed in order, the later array overwriting the previous values. array_replace_recursive(3) is recursive : it will recurse into arrays and apply the same process to the inner value. When the value in $array1 is scalar, it will be replaced by the value in $array2, may it be scalar or array. When the value in $array1 and $array2 are both arrays, array_replace_recursive(3) will replace their respective value recursively. PARAMETERS
o $array1 - The array in which elements are replaced. o $array2 - The array from which elements will be extracted. o $... - Optional. More arrays from which elements will be extracted. RETURN VALUES
Returns an array, or NULL if an error occurs. EXAMPLES
Example #1 array_replace_recursive(3) example <?php $base = array('citrus' => array( "orange") , 'berries' => array("blackberry", "raspberry"), ); $replacements = array('citrus' => array('pineapple'), 'berries' => array('blueberry')); $basket = array_replace_recursive($base, $replacements); print_r($basket); $basket = array_replace($base, $replacements); print_r($basket); ?> The above example will output: Array ( [citrus] => Array ( [0] => pineapple ) [berries] => Array ( [0] => blueberry [1] => raspberry ) ) Array ( [citrus] => Array ( [0] => pineapple ) [berries] => Array ( [0] => blueberry ) ) Example #2 array_replace_recursive(3) and recursive behavior <?php $base = array('citrus' => array("orange") , 'berries' => array("blackberry", "raspberry"), 'others' => 'banana' ); $replacements = array('citrus' => 'pineapple', 'berries' => array('blueberry'), 'others' => array('litchis')); $replacements2 = array('citrus' => array('pineapple'), 'berries' => array('blueberry'), 'others' => 'litchis'); $basket = array_replace_recursive($base, $replacements, $replacements2); print_r($basket); ?> The above example will output: Array ( [citrus] => Array ( [0] => pineapple ) [berries] => Array ( [0] => blueberry [1] => raspberry ) [others] => litchis ) SEE ALSO
array_replace(3), array_merge_recursive(3). PHP Documentation Group ARRAY_REPLACE_RECURSIVE(3)
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