Programming :: Restrict The Perl Array Maximum Size?
Feb 9, 2010How to restrict the maximum size of an array variable in perl such that Ishould not be able to have array elements beyond the maximum size?
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Programming :: Maximum Heap Size For A Process?
Mar 15, 2011Is there any maximum limit to the heap memory allocation?My program is in PERL and i am using a solaris system. when i did "pmap pid" (pid = my process id) it is showing a number of heap memory allocated and all of them with GB sizes. This single process is eating up most of the physical memory.Is it normal and is there any way to get the heap memory size down
View 3 Replies View RelatedProgramming :: Perl Array Last 2 Elements Will Not Pop?
Apr 27, 2010created this array and the last two elements will not pop - phil and sylvia never get up to bat.
1#!/usr/bin/perl
2use strict;
3use warnings;
[code]...
Programming :: Check If An Array Is Empty In Perl?
Nov 28, 2008To do this, can I do this?:
if (@ary = ""),
or is something more needed?
Programming :: Passing Array From One Perl Script To Another?
Dec 14, 2010How do I pass an array from one perl script to another .. also how to read it in another script ?I tried below -
Script 1 - sender program
system ("./program2.pl @array1 @array2");
printf("
[code]...
Programming :: Perl Pushing Two Dimensional Array
Apr 22, 2011I tried to look for this, but there are so little of perl on internet:
Code:
@array = [$title, $description, $pubDate, $link];
push(@feeds1, $array);
I am trying to create a 2 D array by PUSH, so the output would look like:
([ $title, $description, $pubDate, $link ], [ $title, $description, $pubDate, $link ], [ $title, $description, $pubDate, $link ], [ $title, $description, $pubDate, $link ]...etc )
Programming :: Perl - Regex With Array Elements?
Mar 13, 2011I have .txt.gz files that store queries made on a browser, d my job is to analyze them.The information is stored in a xml-like style.Quote:
<browser>lwp-trivial/1.41</browser>
<http_code>200</http_code>
<keywords />
[code]...
Programming :: Split Fields In A Perl Array?
Dec 16, 2010I have an array called @logons. How can I step thru the array and split the fields? This is what I have so far, but doesnt work. I got the feeling I the split statement syntax is incorrect.
Code:
print @logons;
foreach my $logons(@logons){
($userid, $ip) = split(',',$logons);
[code]....
Update: Appears the data in @logons has a column header from the mysql query which I used to populate it with. So that code which I was testing does indeed work.
Programming :: Assigning Output Of A Command To An Array In Perl?
Nov 25, 2010I am trying to execute a Unix Command in perl and assigning its output to an array:
Code:
@File_List=exec("ls -1 /tmp");
but it is not working. I have tried the perl function system() also but its return code is
[code]...
Programming :: Count Occurrency Of Each Array Element - Perl?
May 10, 2010Exist it a perl function to count how much each array element is into array?
View 14 Replies View RelatedProgramming :: Perl - Stop Range Search At End Of An Array?
Dec 7, 2010I have data that looks similar to this -
Quote:
John Smith (Address)
123 Main St
Unit 1
[code].....
So I need everything between each name, but I am not guaranteed that each time I match a name that I will have the same amount of lines, so I do a range pattern search line this to get all lines, no matter if there is 5 or 10 or 15. I simply do a loop that goes through the whole array until I hit the match, and this is my search pattern.
Code:
if ($LINE =~ /^s+$SELECTED_NAME/ ... $LINE =~ /(Address)/) {
push @ADDRESS_INFO, $LINE;
}
This works perfectly... until I hit the end and it doesn't get its final pattern match because it's at the end and there is no next entry with a (Address) line. So as a 'hack', I ended up inserting a final scalar at the end of the array that just says (Address) so it knows it's at the end. Ideally though, I'd like to do an "or" statement that says search for Address || return true if I hit the end of the array. How would I match on "End Of Array" essentially?
Programming :: Perl - Store And Access An Array In A Hash Of Hashes?
Jul 7, 2010I am in need of some syntax help. I'm trying to figure out how to store and retrieve an array out of a hash of hashes. For this example, I'm trying to access the city list for a particular state for a particular country. I understand I could do a join and split on the hash key to combine Country and State, but trying to keep things separated.The code I have gets in all the information for the Countries, and states, and gets the list of cities together, no problem. I store all the city names in an array, then make an anonymous pointer to the array for the hash, like this - $MY_CITIES{$COUNTRY}{$STATE} = [@CITIES]I believe that syntax is correct, or is it? What I'd like to do is I need to cycle through every hash to find if a city exists or not. If it exists in 3 states, then it should print 3 times. Here is the code block to search -
Code:
for $COUNTRY (@LIST_OF_COUNTRIES) {
for $STATE ( keys %MY_CITIES{$COUNTRY){$STATE} ) {
[code]...
Programming :: Perl Beginner - Can't Get PerlMagick To Read Filename From Array Element?
Aug 21, 2010it's been a while since I logged on here! I've been trying my hand at a little perl and have hit a brick wall.I'm using the Imagemagick module to manipulate some images. I can get the following to work without issue:
Code:
$teampath = "/var/www/team1";
$player=Image::Magick->new;
[code]...
Programming :: Perl's Foreach Loop Can't Use An Array Element As The Control Variable?
Jul 22, 2011I'm reading "OReilly Learning Perl 5th Edition", and there are such words:Code:You can use an array element like $fred[2] in every place? where you could use any other scalavariable like $fred.At the bottom of the page, it explains the ? like this:Code:The most notable exception is that the control variable of a foreach loop, which you?ll see later in this chapter, must be a simple scalar.Since Perl has the save-and-restore mechanism for the control variable, why an array element can't be used as the control variable
View 1 Replies View RelatedProgramming :: C++ Find Size Of Array, Through Pointer?
Mar 10, 2009i am trying to find the size of an array, not by using the array as a parameter to "sizeof", but by using a pointer -pointing to the array- as a parameter. How do i do this?I use a 32-bit PC.Here's:
Code:
#include <string>
#include <iostream>
[code]...
Programming :: Array Size Base On User Input?
Oct 27, 2010If I have an array which its size is based on the user input, from some material, I need to use malloc function to allocate memory for that array what is known dynamic array. Don't forget to free it.hat's fine, however, I like to try things out even I know the program will crash.I have written some test program on my Mac using C language like this:int width = 0;//get user input, and assign the input value to width, for example, 3char * array_var[width];and width is an int, its value will be assigned by the user input. The point is, this program work as expected, for example, in command line, I input 3, then array_var length is 3, its size is 3 * sizeof(char *).
View 1 Replies View RelatedProgramming :: Declare An Array With Fixed Size And Initialize All The Elements To Zero
Jul 5, 2010I want to declare an array with fixed size and initialize all the elements to zero. i want all elements of x to be zero and i dont know how to specify the size of array. also i have problem in comparing values in loops. my script is as follows:
i=0
let k=0
declare -a x
for U in ${S[@]}
do
for (( T=1276082023 ; $T -le 1276082139 ; (( T++ )) ))
[Code]...
Programming :: Perl - Can't Use String ("html") As An ARRAY Ref While "strict Refs"?
Aug 8, 2009The below snippet works fine until I use strict. Then it dies with the following error: uote:Can't use string ("html") as an ARRAY ref while "strict refs" in use at ./filetest3 line 18.I want to create @lists based on the $scalars in @type. However, "my @$ext = ()"; and push (@$ext, @files); do not play nice with strict. How do I get around this?Quote:
#!/usr/bin/perl -w
system clear;
use strict;
[code]...
Hardware :: Mkpart With Maximum Size Available?
Feb 2, 2010how to mkpart with maximum size available?
mkpart primary 0 3001G
I have 3TB raid disk. I cannot install centos using GPT partition. I need to use parted and mkpart to format it.
Ubuntu Servers :: Set Maximum Attachment Size?
Jun 4, 2011I use U-server. I set up an mail server as described in Ubuntu Documentation > Ubuntu 11.04 > Ubuntu Server Guide > Email Services.
How can I turn off maximum attachment size. On my server I don't want to limit the size of e mails that arrives.
I manage my server with webmin
General :: Trash Has Reached Maximum Size
Mar 8, 2011When I try to delete a file, ( move to trash ) It says , The trash has reached It's maximum size! clean the trash manually. When I click on the trash icon on desktop it is empty. Where is the trash? Where can I delete these files ?
View 2 Replies View RelatedServer :: Loopback Device - Maximum Size
Sep 24, 2010This seems like a relatively simple question, but the answer seems to elude everyone: What is the MAXIMUM SIZE of a Linux loopback device (not counting any specific filesystem limitations)? Is it the maximum size of a linux block device?
View 4 Replies View RelatedCentOS 5 :: Find Out Maximum I/O Request Size?
Nov 28, 2009How do I find out maximum I/O request size?
I'm using CentOS release 5.2
I know that the default size is 128 K, how do I find out/confirm this?
General :: How To Restrict Directory Size
Aug 5, 2011As example, I have directory in /root called as "shared". i already shared this directory using NFS. i want to limit this directory size into 20 GB(20*1024*1024).That means "shared" directory reserved 20 GB disk space from the HDD.how can i solve this problem
View 3 Replies View RelatedGeneral :: Boot - Maximum Vmalloc Parameter Size?
May 31, 2011First off all, I'm booting from a large MEMDISK using PXE (900MB) . Due to our environment, I cannot decrease the size, nor move files to a nfs/iSCSI/... environment. Everything needs to be in that MEMDISK.
Now, when I try to run the OS, I get out of vmalloc space. How do I increase it to a number which allows such a large image to be mapped? I tried the parameter "vmalloc=1280M", but with that parameter, I don't get past the Booting the kernel screen.
Memory should not be an issue, since the machine(s) have at least 2GB RAM. (900MB MEMDISK + 256MB for other kernel stuff + 768MB for user stuff). The machine(s) have a Pentium 4 Extreme Edition processor, with hyperthreading and SSE2, but no EM64T.
How can I boot the system, and get past that message? Decreasing the MEMDISK size is not possible too. It is at the smallest we can get with our userland + kernel + modules.
General :: Changing Maximum Shared Memory Size
Jul 17, 2011How do I change the size of the available shared memory on Linux?evidently 4GB is not enough for what I am doing (I need to load a lot of data into shared memory - my machine got 8GB of RAM).
View 2 Replies View RelatedGeneral :: 512KB Maximum Transfer Size Per Command?
Apr 7, 2011I'm using fc14 and the SG driver to test some SCSI (SAS) targets. In doing so, I'm bumping up against what appears to be a 512KB maximum transfer size per command. Transfers up to 4MB sometimes work, but often they result in ENOMEM or EINVAL returned from the write() function in the SG driver. I could not find any good documentation on how the SCSI system in Linux works so I've been studying the source for drivers in drivers/scsi.
I see that there is a scsi_device struct that contains a request_queue struct that contains a queue_limits struct that contains an element called max_sectors. The SG driver seems to use this to limit the size of the reserve buffer it is willing to create. I see that there are several constants used to initialize max_sectors to 1024 which would result in the 512KB limit I see (with targets having 512 byte sectors). At this point I have several questions:
1) When the open() function for the sg driver gets called, who initializes the scsi_device struct with the default values?
2) Can I merely change the limits struct to arbitrary values after initialization and cause the SG ioctls to set the reserve buffer to allow greater values?......
Ubuntu :: Maximum Allocatable Heap Size For A Process?
Mar 30, 2010I'm wondering what's the maximum heap space a process can use (not necessarily by a single malloc()) in Ubuntu x86_64. Which parameter determines the size
View 7 Replies View RelatedGeneral :: Find Out Maximum Size Of A Image Disk File Created By Kvm-img?
May 22, 2011I created a VM disk image with kvm-img, but I forget what was the max size of that disk image when I created it. Currently, its size is 6.2G, I want to install some large packages in that VM, so I want to make sure the disk image can expand to an adequate size.
View 1 Replies View RelatedGeneral :: Break Copy Process When Folder Size Reaches Its Maximum?
Mar 19, 2011I have written a script.
#/bin/bash
a=`du -sh /root/samplefolder | cut -f1`
echo $a > testfile
[code]....
The aim of this script is, when the folder reaches 20M then attributes will be set to that particular folder so that no newfiles and folders cannot be created or copied to that samplefolder. whenever i copy a file morethan 20M to that folder its getting copied fully and then the attributes were applied. But i dont want this to happen, when the folder reaches its maximum current write operation to that folder should be stopped automatically with a error.