Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Query related to references in array in Perl
Top Forums Shell Programming and Scripting Query related to references in array in Perl Post 302700265 by balajesuri on Thursday 13th of September 2012 07:32:00 AM
Old 09-13-2012
You cannot do $rr++ in perl like the way you can in C.
Perl offers a different way of accessing the subsequent elements of an array through reference variables. If you didn't already know this, take a look at the sample below:

For e.g.,
Code:
#! /usr/bin/perl -w
use strict;

my @array = (10, 20);
my $rarray = \@array;
print "@{ $rarray }[0]\n";
print "@{ $rarray }[1]\n";

 

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

LEARN ABOUT OSX

tie_std

tie(n)								Tcl Data Structures							    tie(n)

__________________________________________________________________________________________________________________________________________________

NAME

       tie - Array persistence, standard data sources

SYNOPSIS

       package require Tcl  8.4

       package require tie::std::log  ?1.1?

       package require tie::std::array	?1.1?

       package require tie::std::rarray  ?1.1?

       package require tie::std::file  ?1.1?

       package require tie::std::growfile  ?1.1?

       package require tie::std::dsource  ?1.1?

_________________________________________________________________

DESCRIPTION

       The  packages  listed  as  requirements	for  this  document  are  internal packages providing the standard data sources of package tie, as
       described in section STANDARD DATA SOURCE TYPES of tie's documentation.

       They are automatically loaded and registered by tie when it itself is requested, and as such there is no need to request them on their own,
       although it is possible to do so.

BUGS, IDEAS, FEEDBACK
       This  document, and the packages it describes, will undoubtedly contain bugs and other problems.  Please report such in the category tie of
       the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you  may  have  for
       either package and/or documentation.

KEYWORDS

       array, database, file, metakit, persistence, tie, untie

CATEGORY

       Programming tools

COPYRIGHT

       Copyright (c) 2008 Andreas Kupries <andreas_kupries@users.sourceforge.net>

tie									1.1								    tie(n)
All times are GMT -4. The time now is 09:06 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy