Multidimensional array Post: 303021805

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Top Forums Shell Programming and Scripting Multidimensional array Post 303021805 by annacreek on Friday 17th of August 2018 12:39:40 PM

08-17-2018

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Multidimensional array

I am learning about bash system variables, such as $ , @ and #.

I have this piece of script implementing an array and it is doing its job just fine.

This is not the only array I will be using.

Just for ease of maintenance and more coding I would like to have the arrays in two dimensional fashion so I can put all of them in one physical place.

In pseudocode

Code:

array 

         arraySYSTEM=( "$@" )
         arrayUSB=( "$@" )
         arrayXXX=( "$@" )

I am still not to sure how the symbols $@ used in this code actually work.

So - how do I implement two dimension array using system arables?

Code:

 echo "#declare an arraySYSTEM   @line $LINENO "  
 788  arraySYSTEM=( "$@" )
 789 #temporary use lsusb commnds  
 790 set -- lsusb " Debug component SYSTEM " "TEST parameter lsusb -v" "lsusb -$
 791 echo "$#"       # number of elements in array
 792 echo "$@"       # contents  of array 
 793 # do common function  
 794                 ;;

annacreek

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LEARN ABOUT PHP

array_count_values

ARRAY_COUNT_VALUES(3)							 1						     ARRAY_COUNT_VALUES(3)

array_count_values - Counts all the values of an array

SYNOPSIS

       array array_count_values (array	$array)

DESCRIPTION

       array_count_values(3) returns an array using the values of $array as keys and their frequency in $array as values.

PARAMETERS

	      o $array
		- The array of values to count

RETURN VALUES

	Returns an associative array of values from $array as keys and their count as value.

ERRORS
/EXCEPTIONS
	Throws E_WARNING for every element which is not string or integer.

EXAMPLES

       Example #1

	      array_count_values(3) example

	      <?php
	      $array = array(1, "hello", 1, "world", "hello");
	      print_r(array_count_values($array));
	      ?>

	      The above example will output:

	      Array
	      (
		  [1] => 2
		  [hello] => 2
		  [world] => 1
	      )

SEE ALSO

       count(3), array_unique(3), array_values(3), count_chars(3).

PHP Documentation Group 												     ARRAY_COUNT_VALUES(3)

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