Sponsored Content
Top Forums Shell Programming and Scripting Query related to references in array in Perl Post 302700125 by parthmittal2007 on Thursday 13th of September 2012 05:52:01 AM
Old 09-13-2012
Query related to references in array in Perl

Hi All
I have a doubt and want to be cleared I am using
Code:
@array = (10, 20);
$rarray = \@array;
#print "$rarray\n";
#print "@$rarray\n";

 $rr=  \$array[0];
 #print $$rr;
 $rr++;
 print $$rr;

As you can see the $rr contains the reference to the first element of the array , now as the definition say array contains the continuous memory location, so when I incremented the $rr with 1 so it should now print the value for $array[1]..
Please correct me if I am wrong.

---------- Post updated at 04:52 AM ---------- Previous update was at 03:02 AM ----------

Any Idea
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Query related to #!/bin/sh

hi All Why is #!/bin/sh being used in most of the ksh scripts......? I have seen this (#!/bin/sh) being used at the start of the script Regards Suresh (2 Replies)
Discussion started by: sureshg_sampat
2 Replies

2. Shell Programming and Scripting

sed related query

Hi I have a file which looks like this //string = "abcd"; //info //string = "*pqrs"; //add string = "#123"; //sub //string = "#1234567890" data = check(string) //string = "#1234567890" I want to modify this as string = "#987"; //mult data = check(string) How do i do that? (1 Reply)
Discussion started by: gopsman
1 Replies

3. UNIX for Dummies Questions & Answers

awk related query

hi, I have to extract a column from a file and then updated that column..?? Now i can use wak for extracting it and then how to update it.. $ awk' {print $5}' input_file Can i use sed command here piping it to the output from the awk command.. (2 Replies)
Discussion started by: abhisek.says
2 Replies

4. Shell Programming and Scripting

query related to if

wht does below statement mean? if wht does dis -d option do?? TIA. (1 Reply)
Discussion started by: sainathdeg
1 Replies

5. Shell Programming and Scripting

perl - passing hash references to functions

hi there I have the following script in which i have created a PrintHash() function. I want to pass to this function the reference to a hash (in the final code i will be passing different hashes to this print function hence the need for a function). I am getting an error Type of arg 1 to... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

6. Shell Programming and Scripting

datetimestamp related query!

Hi all, I have put a query in a thread but didn't get any reply. Hoping to get a reply here. I have a file in that one line resembles like below... Forwarded by Deepak on 11/15/2009 10:28 AM EST ofcourse AM can be PM also... so what i need is first i need to get only... (1 Reply)
Discussion started by: smarty86
1 Replies

7. Shell Programming and Scripting

Perl References/Dereferences

Can someone explain where can we actually used print $var->; or print $$var When does the -> becomes necessary and when its optional. (1 Reply)
Discussion started by: dinjo_jo
1 Replies

8. UNIX for Dummies Questions & Answers

A query related to 'ls' command

I am executing the ls command to show the contents of a folder, it shows some number in front of word total as highlighted in blue color below quotes. Can anyone please share that what it is? (2 Replies)
Discussion started by: Zaib
2 Replies

9. UNIX for Dummies Questions & Answers

query related to grep

Hi All, The result for 'grep "cert_codes" /develop/sales/appl.srce/*.4gl' command will be saved at aa.txt grep "cert_codes" /develop/sales/appl.srce/*.4gl >aa.txt But I am not sure, whether, all result stored in .txt file in case of multi-line result. Please revert back if... (2 Replies)
Discussion started by: pbankar
2 Replies

10. Emergency UNIX and Linux Support

Interfaces related query

I need to list the interfaces that uses FTP instead of SFTP on my applications that are on AIX servers. How do I get that list of IP addresses that connect to my applications via FTP? (2 Replies)
Discussion started by: ggayathri
2 Replies
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)
All times are GMT -4. The time now is 12:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy