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Re: about serialization

Thanks,zentara and others. 2006/11/7, zentara <[EMAIL PROTECTED]>: On Tue, 7 Nov 2006 17:58:47 +0800, [EMAIL PROTECTED] ("Practical Perl") wrote: >I saw a paper about DB_File, > > Three serialization wrappers are currently supported: Data::Dumper, >

about serialization

I saw a paper about DB_File, Three serialization wrappers are currently supported: Data::Dumper, Storable, and FreezeThaw. Additional serializers can be supported by writing a wrapper that implements the interface required by MLDBM::Serializer. See the supported wrappers

get week numeration in a year?

Hello,list, Is there a fast way to get the week numeration in a year? For example,now it's 35th week in 2006,next week is 36th week of this year then. Thanks.

Re: Time::Local let me faint

Thank you,:-) For the intuition I treated '8' as August in Time::Local's method...A low-level mistake. 2006/8/30, Lawrence Statton XE1/N1GAK <[EMAIL PROTECTED]>: Because SEPTEMBER only has thirty days. 0 - January; 1 - February; 2 - March; ... --L -- To unsubscribe, e-mail: [EMAIL PROTEC

Time::Local let me faint

Hello,lists, Please see these two lines' output: [$ perl -Mstrict -MTime::Local -le 'print timelocal(0,0,0,31,8,2006)' Day '31' out of range 1..30 at -e line 1 $ perl -Mstrict -MTime::Local -le 'print timelocal(0,0,0,31,7,2006)' 1156953600 I translate the time of '2006-7-31 00:00:00' to unix

What's this error in regex?

Hello, I got a warning message from my perl script,it's this: Quantifier follows nothing in regex; marked by <-- HERE in m/? <-- HERE ?/ at ./.pl line 703. The 703st line is in a subroutine,the subroutine is: sub some_sub { my $arg1=shift; my $ok=0; for (@some_global_array)

Socket Problems

Hello,lists, We write a simple socket script using IO::Socket module.When this script connect to peer server (both server and my scripts are in the same LAN),it always dropped and print these errors: IO::Socket::INET: connect: Connection refused IO::Socket::INET: connect: Connection timed out H

How to get the file's end-lines?

Hello,here, I want to get some numbers of end-lines from a file,under unix shell,I can do: $ tail -2000 file.txt or I can do it in perl script: my $lines = `tail -2000 file.txt`; I want to know,is there a pure perl way to do that without using the 'tail' unix command?

require or use

Could anyone tell me what's the difference between 'use' and 'require'? And,is there any difference for these two statements? use Exporter (); require Exporter; Thank you.

Is this correct in perl?

Hello, When I receive a signal (for example,TERM or INT) from terminal,I want to get the process exit immediately.But the process have some childs running,so he would tell the childs to exit before he exit.So I write a kill statement (used to kill childs) in parent's signal handler.For example: #

Re: mysql insert errors

Thanks for all,I'll try some ways to fit it.

mysql insert errors

Hello,all, I wrote a script to insert datas to mysql database.The insert frequency is about 45 times per second. Most of the insert actions are successful,but I still see some errors as follow: DBD::mysql::st execute failed: INSERT command denied to user 'abc'@'192.168.3.10' for table 'rcpt' at .

Re: about return value

Thanks all. Again,how about the difference about a pointer and a reference? 2006/3/27, Jay Savage <[EMAIL PROTECTED]>: > > On 3/25/06, Practical Perl <[EMAIL PROTECTED]> wrote: > > Hi,list, > > > > When a subroutine return a value,for example,this value is

about return value

Hi,list, When a subroutine return a value,for example,this value is a pointer to an array,which is get defined in this subroutine.When out of the subroutine,some a statement call this subroutine and receive the return value to a variable named as $aaa.Is $aaa a duplicate of the pointer in that sub

Does this script have the efficiency problems?

Hello, I have a script,which run well at most time.This day I use it to analyse the files of 1.7G,it become very slow and can't get executed continuely anymore.When I run 'strace -p ' (here is this script's PID),there is no output,it seems died. Here is my script: #!/usr/bin/perl use st