Hello list,
are these statements the same in perl?
$ perl -le '$_="abc";if (!/\w+\d+/){print "not matched"}'
not matched
$ perl -le '$_="abc";if ($_ !~ /\w+\d+/){print "not matched"}'
not matched
or which is the better one?
Thanks.
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On Wed, 29 Feb 2012 16:16:30 +0200, Brent Clark
wrote:
Hiya
Im looking to buy perl cookbook. I see the second edition was
released 2003.
Before I go off and buy it, does anyone know if perl cookbook 3rd
edition, is ever going to be published?
IIRC the book "Perl by examples" has the 5th e
于 2012-2-14 13:14, Punit Jain 写道:
This works manually if I run this script however under crontab it doesnot.
Any clue what could be the issue ?
How about the environment variables?
For example, you maybe have setup the value of RSYNC_PASSWORD in the
shell, but the value becomes not effective
于 2012-2-9 15:21, Parag Kalra 写道:
By data-structures being used, I mean the data structures that are
actually *declared* in the script.
And is it possible to find at least the data-structures stats of the
current script that is getting executed if no parser is available.
For example if I hav
于 2012-2-9 14:10, lina 写道:
On Thu, Feb 9, 2012 at 1:44 PM, Jeff Peng wrote:
> 于 2012-2-9 12:44, lina 写道:
>
>> $string =~ m/(\S+)(and|or)(\S+)/;
>
>
> $string =~ m/(\S+)\s+(and|or)\s+(\S+)/;
Wow, thanks
how does that one not work as expected,
I am reading brian
于 2012-2-9 12:44, lina 写道:
$string =~ m/(\S+)(and|or)(\S+)/;
$string =~ m/(\S+)\s+(and|or)\s+(\S+)/;
HTH.
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于 2012-2-9 10:15, Steve Bertrand 写道:
I would suspect that this would be something that would have to run
against the file itself, even prior to compile.
Curious task. Might I ask what the purpose of your desire is?
I am also not sure what's the special purpuse of the OP.
Some modules on CP
于 2012-2-7 15:45, lina 写道:
I am sorry, still don't get.
$year = shift
part
Try with this code:
use strict;
my $month = "December";
my $year = "2007" ;
header($month,$year);
sub header {
print '@_ is: ' . "@_\n";
my $month = shift ;
print '@_ is: ' . "@_\n";
于 2012-2-7 15:07, lina 写道:
my $month = shift ;
my $year = shift ; here after shift the $year becomes null?
http://perldoc.perl.org/functions/shift.html
after shift the @_ becomes null. $year is 2007.
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On Sun, 22 Jan 2012 13:47:26 +, Lívio Cipriano
wrote:
Hi,
I'm new to Perl but old in other programming languages. Is there a
equivalent
book in Perl as to the The C Programming Language?
Regards
Lívio Cipriano
http://backpan.perl.org/authors/id/Q/QU/QUONG/perlin20.html
A guide to Perl 5
于 2012-1-18 11:31, Chris Stinemetz 写道:
Would someone kindly advise me in sorting this array:
my @array = qw(c r v vr tr re c.p[1] c.p[3] c.p[2] c.p[4] c.p[7]
c.p[6] c.p[5] c.p[8] c.t[1] c.t[3] c.t[2]);
I only want to sort the elements that have a numeric value inside the
braces so that all the
于 2012-1-16 1:18, Pradeep Patra 写道:
It works and displays 1-12. But I need something different because i
dont know the value of "n" beforehand. So I decided to use a for loop.
I tried push but it did not work. I would appreciate any help to merge
multiple array elements preferably not using any l
于 2012-1-14 11:25, Parag Kalra 写道:
use FooBar;
my $obj = FooBar->new;
Do something
...
$obj->{'new_key'} = 'some_value'
Now I am not sure if that is the correct way of inserting a new data
structure into an already bless reference
I don't think you should modify the blessed obj
Just from the subject, for comparing arrays, I have been using
Array::Diff which works always fine for me.
I have a script where I have captured the value on the left side of
the "=" as the header for my table. Now I want to take the value on
the right side of the "=" sign and populate a new r
And the book "Network programming with Perl" is a good book for Perl
client/server development including the fork stuff.
> -Original Message-
> From: dery...@gmail.com
> Sent: Wed, 15 Jun 2011 13:11:38 -0700 (PDT)
> To: beginners@perl.org
> Subject: Re: perl process forking tutorial recom
Original-Nachricht
> Datum: Fri, 17 Dec 2010 20:07:33 -0800
> Von: David Christensen
>
> You should buy the Perl Cookbook:
>
> http://oreilly.com/catalog/9781565922433
>
>
does the cookbook have a new edition?
I remember I have read it several years ago.
Jeff.
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Ne
Original-Nachricht
> Datum: Sat, 18 Dec 2010 17:30:38 +0100
> Von: Francesco Di Lorenzo
> An: "beginners@perl.org"
> Betreff: Real life usage
> What role do Perl have in your work? In which particular projects you use
> it? Do you use it for particular piece of your softwares'
于 2010-12-17 11:29, Shawn H Corey 写道:
Every "file" in it is a pipe that can be read using regular file
handles. And I believe only Linux does this.
Yep.Also the OP is asking exactly about linux.
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于 2010-12-17 9:32, Matt 写道:
I have a perl script but I want to exit it if the uptime on the server
is less then say an hour. Any idea how I would get uptime with perl?
$ cat /proc/uptime
4205976.64 4017280.59
The first column is the host's uptime seconds.
Jeff.
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于 2010-12-16 7:06, Sisyphus 写道:
ppm install MinGW
I think that gives you both the MinGW port of the gcc compiler and dmake
(which is the make utility you'll be using ... not gmake). If you find
that dmake is not installed by running 'ppm install MinGW', then run:
ppm install dmake
Once MinGW a
Hi,
I have intalled activeperl 5.10 on windows and try to install a perl
package.
But I can't find the package in activeperl's "perl package manager"
though this package does exist in CPAN.
Also my windows doesn't have gcc/gmake installed.
So how to install this kind of package? Thanks.
Regards.
于 2010-12-15 1:38, Jim Gibson 写道:
or the File::Find module to find files without resorting
to the use of separate processes and shell commands.
Me second.
File::Find is your friend.
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form where i can find what these characters are and their
ascii values?..any sugges would be really helpful
You get the files from windows to un*x?
try the command 'dos2unix'.
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For additional c
ration system's uptime then it's much difference from
the current time.
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> Hey All,
>
> Just finished reading 'intermediate perl' Enjoyed it as much as I
> enjoyed the book 'learning perl'
>
> Thanks Randal, Tom & All
>
> Please now suggest another must read nook on perl.
>
why not "network programming with Perl"?
This book will give you much more knowledge than perl i
> On Sat, Oct 23, 2010 at 07:52:50PM +0200, Shlomi Fish wrote:
>
> Just be sure you know what you are doing. Adding a method to somone
> else's
> class can be considered rude. See the NOTE in perldoc perlmodlib.
>
He/she is maybe coming from other language like Ruby.
In ruby it's free to add me
statistics from it.
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于 2010-10-15 15:02, Agnello George 写道:
HI
Is there any site or any book other than "learning perl" where i would get
real life exercises on perl scripting.
Thanks
perl cookbook.
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于 2010-10-7 16:13, Shlomi Fish 写道:
>
> In case you haven't read the book "Perl Best Practices" (which you should),
> you should know that http://search.cpan.org/dist/Perl6-Form/ would be
> preferable over the built-in perlform which has horrible behaviour.
>
Ah OK, in fact I used neither of the
> Hi there List members,
>
> I have millions of SQL records that I searching with lots of poorly
> entered data and I am trying to match these records based on matching
> text.
>
A database with well designed tables should be processing the data much
faster than perl IMO.
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> Hi folks,
> Can anyone please explain what is "perlform" and its
> usage.I used google but i was not able to crack.
Try "perldoc perlform".
Cheers!
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> The method mentioned is to get the output while u are running the perl
> files
> at the shell prompt not in the code..
> if u want to save the log details after the perl files are processed then
> use this function
>
> sub file_write {
> $_file = shift;
> $_data = shift;
> open FILE,"
> You could use filehandle to save the output outcome.
>
> use strict;
> open OUT, ">outfile.txt"; ## at the beggining
>
> and for instance:
> print OUT $seq->id(),"\n";
>
or use Perl's "select".
but that requires the OP to modify the source code, which is maybe not
what he/she want.
Regards.
-
> Sorry doesnt work.
>
> Error is :
>
> Can't locate object method "perl" in 'filename'...
>
what's the content of the script?
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> Hello,
>
> Can anyone please tell me how to save output (what we get after running a
> perl script) as an external file?
>
run it under a unix shell?
try:
perl a.pl > a.txt 2>&1
save all the output of a.pl to a.txt.
2>&1 means to capture the script's error output also.
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> Hi
>
> Is it better to learn Perl or Python since i can manage only writing
> simple bash shell scripts.
>
> Please suggest/guide.
>
Since you are coming from shell, Perl is better for the beginning.
from wikipedia (http://en.wikipedia.org/wiki/Perl):
Perl borrows features from other programmi
> ( i did'nt know where to post this; perl forum or python forum )
>
> I am a bit confused, i have been learning perl last 1.5 yrs .. then
> suddenly in my new company they use python to do all their scripting work
> ,
> so i would have to follow protocol :) and learn python
>
> So now just wan
>> On Mon, Oct 4, 2010 at 9:49 AM, sheikh numan iqbal > >wrote:
>>
>> > hi,
>> >
>> > i want to login and need help on perl...
>> >
In some nations "login" means "step into the door".
So for learning perl you may go:
http://learn.perl.org/
Good luck.
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.INT;
> secret mykeyishere;
> };
>
> inserted it into my script and run it.
> I always get
> "Update error code: REFUSED"
>
This is most likely a DNS updating problem rather than the perl problem.
Please send the question to Bind's mailing list.
https://lists.isc.org/mailma
root/
local::lib is maybe what you want.
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Perl_my_strftime in [util.c][0] if you want to check).
> I ran your code against 5.12.1, 5.10.0, and 5.8.9 on OS X and got
>
Me also. Didn't get big difference among the three versions for that function.
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e got a script or can point me in the right direction?
>
Hi,
Could you use Net::SMTP and enable the debug option to trace the process?
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On Mon, Mar 29, 2010 at 10:27 PM, Shlomi Fish wrote:
>>
>> No. ($foo == 1) is a list which always has a value of either 1 or 0 so
>> it really return a true value in both cases.
>
> Not true:
>
> {{{
> shlomi:~$ perl -le '$foo = 0; print +($foo == 1) ? "Foo is 1" : "Foo is not
> 1"'
> Foo is not
$bar = 0 :
> $bar = 1;
>
> These are logically equivalent, right?
No. ($foo == 1) is a list which always has a value of either 1 or 0 so
it really return a true value in both cases.
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.Deserialize(XmlReader
xmlReader, String encodingStyle, XmlDeserializationEvents events)
--- 内部异常堆栈跟踪的结尾 ---
在 System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader
xmlReader, String encodingStyle, XmlDeserializationEvents events)
在 System.Xml.Serialization.XmlSerializer.Deserialize
Thanks Rob so much for the sample code.
I will try it following your direction, thanks.
On Mon, Mar 29, 2010 at 6:42 PM, Rob Coops wrote:
> Got it, I for got to indicate the arrays there. The code below will produce
> the following output.
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On Mon, Mar 29, 2010 at 5:56 PM, Shlomi Fish wrote:
>1. SOAP::Lite is no longer recommended. You should use SOAP::WSDL or
>XML::Compile::SOAP instead. (According to the perlbot factoid on
>irc.freenode.org )
Thanks Shlomi, let me check them.
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s wrote:
>
>
> On Mon, Mar 29, 2010 at 11:36 AM, Jeff Peng wrote:
>>
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Hello,
I want to post some data to a webservice which is .NET powered.
The webservice's developer tell me the request should be:
POST /Service/IndicatorsService.asmx HTTP/1.1
Host: 192.168.1.100
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/DataUpLo
Thanks all.
for "return ()", does it mean return an empty list, or return with no argument?
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>>> "return" statement with explicit "undef" at line 185, column 9. See page
>>> 199 of PBP. (Severity: 5)
I got the cpan test report, it pointed out the one above.
Is "return undef" not to be encouraged in current Perl?
Thanks.
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2010/3/23 Shlomi Fish :
>
> 2. Don't use threads in Perl. They cause too many problems.
>
Does it still have many problems until now?
I ask it just because I wrote many code with Perl threads in my work,
they seem work nice.
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No. Even having just 0 in a line won't make the line lost without defined.
$ perl -e 'print "1\n2\n3\n0"' > a.txt
$ perl -e 'open FD,"a.txt"; while(my $line=) { print $line }'
1
2
3
0
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o how about while (my $line = ) instead of using $_?
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t has already given the examples.
http://search.cpan.org/~ivan/Net-SCP-0.08/SCP.pm
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same stuff.
Now I got it. :)
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bj = abc->new;
$obj->init_squid_for_reverseproxy;
The error says:
Can't locate object method "init_squid_for_reverseproxy" via package "abc" .
Why?
OK I simply updated the alias definition to:
*init_squid_for_reverseproxy = \&init_reverseproxy;
This works as I w
it?
>
Hi MIke,
I never used this module by myself.
But the module's author was active on mod_perl's mailing list IIRC.
You may repost the question to that list to expect an answer.
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RR to a file handle if doing
it in the script.
btw, Cheers Chinese New Year for all Chinese Perl users.
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On Thu, Feb 11, 2010 at 7:04 AM, newbie01 perl wrote:
> The worry is someone getting access to the script and then putting in some
> print commands to expose the username and password information.
Could take a look at:
perldoc -q 'hide the source'
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d to get the application secure.
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On Thu, Feb 11, 2010 at 2:03 AM, Jay Savage wrote:
>
> $@ is also *guaranteed*--in the words of perlfunc--to be set
> correctly. I believe that historically this may not have been the
> case: $@ may have only been set on failure and not flushed on success,
> but in recent Perls it should be reliab
On Wed, Feb 10, 2010 at 2:40 AM, Ariel Casas wrote:
>
> My question is; how do I keep my perl script from dying if my shell
> window accidentally closes while my perl script is paused at the
> system function portion of my script?
Hi,
Make a daemon process for running in the script, or use nohu
On Thu, Feb 11, 2010 at 6:00 AM, Aravind Venkatesan wrote:
> Hello,
>
> I am new to perl. I am trying write a Perl module to convert KGML (XML file)
> to RDF format . Could anybody suggest as to how to go about this (just to
> give me a start).
>
Hi,
You may pick a book for learning some base k
nother module and have them
> visible in the main:: scope as local variables.
>
I once wrote a simple document for it, see:
http://home.arcor.de/pangj/share_variables_between_perl_scripts.txt
HTH.
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> I have a Perl Script that uses some of the Archive::Zip's methods for
> reading zip entries. Works fine on Linux, BUT on Solaris, this lib is not
> available in Solaris and I'm not allowed to install any lib in it. Is there
> a way to load the archive::zip lib dinamically, without installing it
> Hi,
>
> I'm running Perl on Windows XP, and have a script which I've run for
> ages with no problems. However, I now have a message per below:
>
> "Win32 version 0.27 required--this is only version 0.24 at D:/Perl/lib/
> Cwd.pm line 663."
>
> .. .and the script quits on me.
>
You may want t
在 2010-01-21四的 10:51 +0530，V U Maheswara rao k写道：
> Hi All,
>
> can I convert perl file into binary file? So that my code will be secure/.
>
perldoc -q 'hide the source'
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在 2010-01-19二的 00:09 -0500，Perl Noob写道：
> I have a data file with thousands of records. The problem is that the
> records in the data file span two lines for each record. I want to
> write a perl script that makes each record a single line. The file
> looks like this:
>
HI,
If you are using a
在 2010-01-17日的 23:34 +0530，Parag Kalra写道：
> Hello All,
>
> I am looking for a geeky way to wish someone on his Birthday with the help
> of Perl.
>
> Condition is - It should be one liner which I can directly execute from the
> command line.
>
> EG: perl -e "print 'Happy Birthday Larry!!!'"
>
G
在 2010-01-17日的 11:16 -0600，Mike Blezien写道：
> Hello,
>
> I've been looking for some basic domain/IP info that we can generate for
> domain/IP addresses entered from a form. I've been searching CPAN without
> much
> luck, but maybe looking in the wrong places. What I like to do is obtain the
> f
On 五, 2010-01-08 at 14:36 -0500, Uri Guttman wrote:
>
> i hate to be the police on questions here but recently we seem to have
> been getting a fair number of them that are not beginner level.
>
Before stopping anyone from posting this "NON-Begin" questions, you must
be able to define "what's a
On, 2010-01-07 at 11:24 -0800, Shankar wrote:
> Hello,
>
> I'm using CPAN module, Mail-Box-2.093, to parse and process my MBOX
> file on Unix.
>
> I have a message as follows.
> I have an email, when I open in PINE on Unix, it shows the header as:
> [utf-8] Recommendation Letter...
>
> When I tr
Hello,
Can the code (specially the regex) below be optimized to run faster?
#!/usr/bin/perl
for ($i=0; $i<1000; $i+=1) {
open HD,"index.html" or die $!;
while() {
print $1,"\n" if /href="http:\/\/(.*?)\/.*" target="_blank"/;
}
close HD;
}
The "index.html" is got from:
wget http://www.265
Parag Kalra:
Hmmm - http://search.cpan.org/~dankogai/Encode-2.39/lib/Encode/Guess.pm
It says right at the bottom that below method won't work to guess the
encoding. :(
Encode::Guess maybe work, but not so exactly.
Because some Code Bits of an encoding are overlapped (for example,gb2312
and
Parag Kalra:
I am curious to know more on UTF and understand related issues that may
creep in my algorithm. Could someone please shed some light on it.
Can I use following:
use Encode;
while(<$sample_file_fh>){
# Encoding into utf data
$utf_data = encode("utf8", $_);
For the line a
Uri Guttman:
and i bet you really don't need this but you just think you do.
why not?
I did have used object clone, like a ruby one:
> class Myclass
> end
=> nil
> x=Myclass.new
=> #
> y=x.clone
=> #
> x.object_id
=> -605921708
> y.object_id
=> -605931318
The object was cloned, they b
Peter Scott :
% perldoc -f use
use Module VERSION LIST
use Module VERSION
[...]
If the VERSION argument is present between Module and LIST,
then the "use" will call the VERSION method in class Module
with the given version as an argumen
Hello,
The latest version of LWP::UserAgent (v5.834) has a method of
"local_address", which is needed by my software.
The lower version of this module (for example, v5.824) doesn't have that
method.
So how to force to use the latest version of LWP::UserAgent in the perl
script?
Thanks.
Merry Ho
2009/9/30 Jyoti :
> Thanks for reply Rajiv. Will go through.Also can you explain me what this
> error means:
> Odd number of elements in anonymous hash at
> /usr/lib/cgi-bin/websubroutine.pl line 18.
That may mean, you passed wrong arguments to the method in a class.
The method expects a hash, sho
Since you know the scripts' names you may find what modules they are using:
http://search.cpan.org/~elliotjs/Module-Used-v1.2.0/lib/Module/Used.pm
2009/9/29 Raheel Hassan :
> Hello,
>
> We have one software which is installed at one machine. The software was
> developed by many developers(student
2009/9/29 Andreas Moroder :
> Hello,
>
> according to the man glob can only sort by name. Is there a way to get a
> list of files sorted by date ?
>
sure.
first I will use unix's ls command like ls -ltr.
in perl one of the ways:
my @sorted = map { $_->[0] }
sort { $a->[1] <=> $b->[1]
2009/9/29 Shawn H Corey :
> Soham Das wrote:
>>
>> How can I create a Hash of Hashes from two lists. Is it possible?
>>
>> I want the effective functionality to be served like this
>>
>> $ChildHash["Joe"]["21A"]="Sally"
>>
>> i.e Joe at 21A has a child called Sally. List1 here will be the name of
>
hey are encoded. :-)
use Encode;
my @list = Encode->encodings(":all"); # get all encoding ways
for my $encoding (@list) {
print "decoded with $encoding:\n";
print encode("utf8",decode($encoding,$your_string) );
}
--
Jeff Peng
Office: +86-20-38350822
AIM: jeffpang
www.dtonenetworks.com
2009/2/7 itshardtogetone :
> Hi,
> How do I print the % sign when using printf.
use another % to escape it.
--
Jeff Peng
Office: +86-20-38350822
AIM: jeffpang
www.dtonenetworks.com
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2008/12/29 mobile.parmenides :
> Hi,
>
> I am new to perl. Experience from the C programming tell my we can do
> something well with an IDE. But, is there some IDE of perl, in which we can
> do coding, debugging, etc?
>
for general scripts programming, VI/VIM is enough,:)
it will be v1 v2 v3 in the other case. The difference is one
> is seperated by whitespace while the other is not.
Welcome to the list.
For your question, see:
perldoc -q 'print an array'
try to use perldoc, that's a good tool for learning Perl.
--
Jeff Peng
http://hom
2008/12/23 sanket vaidya :
>
>
> Hi all,
>
>
>
> How can we read mail from inbox without using mail client like outlook?
> Using perl. i.e. Is it possible to read Inbox of your gmail account using
> perl?
I think it's possible.
Search "Gmail" on CPAN a
On Fri, Jul 18, 2008 at 12:26 AM, Stewart Anderson
<[EMAIL PROTECTED]> wrote:
>>
>
> push @hh, [$direction, $source];
>
> Is that creating an "anonymous reference" ?
>
I think it's an anonymous array, not an anonymous reference.
--
Regards,
Jeff. - [EMAIL PROTECTED]
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On Fri, Jul 18, 2008 at 12:00 AM, Richard Lee <[EMAIL PROTECTED]> wrote:
> is there way to do this in one step?
>
> push @array, ($direction, $source);
>
>push @hh, [EMAIL PROTECTED]
>
>
> push @hh \($direction,$source) doesn't seem to work.. or not the samething
>
push @hh, [$directi
On Fri, Jul 18, 2008 at 12:00 AM, Richard Lee <[EMAIL PROTECTED]> wrote:
> is there way to do this in one step?
>
> push @array, ($direction, $source);
>
>push @hh, [EMAIL PROTECTED]
>
>
> push @hh \($direction,$source) doesn't seem to work.. or not the samething
>
push @hh, [$directi
On Mon, Jul 14, 2008 at 4:40 PM, Amit Saxena <[EMAIL PROTECTED]> wrote:
> Hi
>
> Instead of hard-coded passwords in my source code or an input file, I would
> like to enable some sort of encryption through some keys for all the
> usernames in Oracle 10g.
>
> Please let me know how to do that with P
On Mon, Jul 14, 2008 at 5:12 PM, Anirban Adhikary
<[EMAIL PROTECTED]> wrote:
> Dear list
>
> If I want to remove perl from my linux/unix machine then what is the
> procedure for this?
>
Why do it?
Without Perl many system functions can't run.
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Jeff. - [EMAIL PROTECTED]
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On Wed, Jul 2, 2008 at 9:33 PM, Chen Yue <[EMAIL PROTECTED]> wrote:
> Hi
>
> I have a file containing UNIX-styled Path in each line. But the path is
> simplified enough. Some of them has ".." and "." in the middle, such as
> "/a/b/./c/../d".
> Now I want to simplify each Path according to Unix trad
On Wed, Jul 2, 2008 at 12:50 PM, Rajnikant
<[EMAIL PROTECTED]> wrote:
> I want to uncompress *.gz and *.tar on linux box.
>
> So is there any package which will do it for me?
> Can we use Zlib to do same?
Search and use a module from CPAN, that will make things fast. like:
http://search.cpan.org/~
On Tue, Jul 1, 2008 at 8:39 PM, <[EMAIL PROTECTED]> wrote:
> Can any one help me out in Installing DBI in a standalone box. There is no
> internet connetion. I tried downloading DBI-1.48 module and tried using ppm
> and makefile.PL its not working. I am doing it correct or missing something?
>
On Tue, Jul 1, 2008 at 8:36 PM, Harry Bennett <[EMAIL PROTECTED]> wrote:
>
> I have not received a digest since 22 may. If I try to subscribe (again) I get
> no reply either to confirm or inform me that I am already on the list.
Try to check your system's antispam policy to see if you have
filter
On Tue, Jul 1, 2008 at 11:04 AM, Akhil Srivastava <[EMAIL PROTECTED]> wrote:
> Still I am not able to make it work. The problem is to read a file loop from
> inside a top loop and exit the file loop when the top loop finishes.
You maybe should post the code piece to the list, we may have the
c
On Mon, Jun 30, 2008 at 3:26 PM, Ram <[EMAIL PROTECTED]> wrote:
>
> I want it run without any GUI. it shoud run automatically at defined
> time ?
>
Perl script is running without GUI normally unless you use TK.
"crontab" or "at" commands under unix can do what you wanted.
please man them for deta
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