Length of a string

For the life of me, I cannot remember how to find the certain numbers in a string. I remember how to find the length of an array but I cannot find how to find the length of a string in a variable. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

perl system function

hi guys, The following cgi script works just fine when i run it from the command prompt, but when i check using a browser the output is not displayed...it gives error as document contained no data..can i use the system() function in cgi as i have done below? the data itself is not fetched from

Re: Length of a string

Ron wrote: > For the life of me, I cannot remember how to find the certain numbers in a > string. I remember how to find the length of an array but I cannot find how > to find the length of a string in a variable. perldoc -f length > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For

Socket closed connection

Guys, How can I check if the remote peer closed my TCP connection? The following code is OK (taken from the book) because it expects something to come from the peer: use IO::Socket; $sock = new IO::Socket::INET (LocalHost => 'goldengate',

Re: A Switch Case for multi-state returns.

On Sunday, March 31, 2002, at 07:07 , Jonathan E. Paton wrote: [..] I had not thought of the SWITCH case being one way or the other in the OO v. Proceduralists approach - but your proposition does present the problem - what is the tradeoff between 'runtime performance' and maintainability. >>

RE: Writing Dir Names into a File

Good morning, > So I have modified my script a bit and it works. However, now > I want to not > read in the "." and ".." directories. How can I do this?? I am having > problems with this part. I usually use the following code to do this: opendir DIR,'$mydir' or die "couldn't open dir [$myd

Re: A Switch Case for multi-state returns.

> > What if there is HUNDREDS of items, then > > it'd be really slow. For a better approach > > using hashes then see what I did in: > > > > http://groups.yahoo.com/group/perl-beginner/message/9583 > > The question that now comes to mind is why > not put all of the 'response functions' > into a P

Re: Books on advanced text processing

On Fri, 2002-03-29 at 23:36, Jim Witte wrote: >I'm contemplating writing some software to scan through a large volume > of email (over 95 MB) to identify threads and remove quoted material. > Does anyone have any good references on algorithms to do text processing > like this for such a ma

Re: CGI question

On Monday, April 1, 2002, at 07:12 , Joe Echavarria wrote: > if (param()) > { > $cate= param('categorias'); > print " The Param is ---> es $cate"; > }; > while ($file = ) { >($categoria,$link) = split(":",$file); > ##this code is not working >if ($categoria eq $cate) { >

Re: CGI question

when i try to excute your code over the brower i get not output from the script, but when i execute the script at command line i gets output. why ? --- drieux <[EMAIL PROTECTED]> wrote: > > On Monday, April 1, 2002, at 07:12 , Joe Echavarria > wrote: > > > > > if (param()) > > { > > $

regex excluding \w.\w\w\w.\w

I'm trying to figure out how to exclude upload files with 2 periods at the end (b/c of that virus which I forgot the name of, maybe nimba?) Anyhow, this is what I have but it doesn't work. When I try to submit with the double periods the test always results in false and never gives the error

Re: regex excluding \w.\w\w\w.\w

> if ($filename=~/(\w.\w\w\w.\w)$/) This will match: <3 word chars> You need to escape the . Jonathan Paton __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- T

Array question

Hi, I have a datafile with a list of names like Ana John Mike Tracy John Luke etc. I don't know how long the list is and eventually in the list some of the names will repeat. I want to put these names in an array but I don't want to repeat any names in the array and I want to keep a count

no output from the script

Hi there, When i try to execute the script using the web browser i get no output from it but at shell prompt it works. Here is the script : #!/usr/bin/perl -w use CGI qw/:all/; print "Content-type: text/html\n\n"; print "- LISTA DE LINKS -"; open(LISTA,"links") or die "Error > : $!\n"; o

re: unallowed chars

Thank you Jenda! I acted defensively in my email response to you. It's good to know about the 0, I never heard that before. >I guess it's me how should apologize. >Your second mail really sounded like you did not read my mail at >all and I overacted. > >For unallowed chars: > >1) almost always

FW: How does one get returned values from embeded scalars

The problem I am having is with $full How do I get $login to return its value when I try to assign this scalar $full Thanks in advance #!/util/perl5.static $hostname = qx(/usr/ucb/hostname); chomp $hostname; %hosts = ( crane => "hourihj", runner => "paulg", ice => "roo

RE: using search backreferences in a variable [end]

Thanks, Jeff! - B __ On Mar 28, Bryan R Harris said: >- Why is the \1, \2, etc. syntax obsolete? The one thing I love about >regular expressions is that I can use them within text editors (nedit, >textpad, bbedit), but none of these support the $1 notation in the replace >st

scp inside perl

Hi all, Is there a way to do scp inside perl script? Thanks, Jeff Liu -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: no output from the script

I find that print "Content-type: text/html\n\n"; doesnt always work. So I just use print $CGI->header; Regards, Agustin Rivera Webmaster, Pollstar.com / Pollstaronline.com - Original Message - From: "Joe Echavarria" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, April

RE: scp inside perl

Jeff: Yes. Merely use something like: system("scp Source Destination"); This would be the easiest way, or, also: `scp Source Dest`; More elaborate stuff can be done, but this is good for starters. Best Regards, Greg -Original Message- From: Jeff Liu [mailto:[EMAIL PROTECTED]] Sent:

Re: FW: How does one get returned values from embeded scalars

looks like '$login = print $hosts{$hostname};' is not what you want. 'print' function returns '1' -- not the string it prints. you want: $login = $hosts{$hostname}; and if you really want to print the value: print $login; On Monday, April 1, 2002, at 08:30 AM, [EMAIL PROTECTED] wrote: > The pro

RE: scp inside perl

Hi Greg, Thanks for your help. But I have difficulty to fill in the password. What I like to do is, open (SCP, "| scp source destination"); print SCP scppassword; close SCP; Above code does not work for me. Any idea to make it work? Best regards, Jeff Liu -Original Message- From:

Re: Array question

Allison, Check out pages 133 - 135 in Learning Perl (3rd Edition) - the section "AutoIncrement and Autodecrement" section _ particularly the top of page 135 has an example for just this very question! I just read that last week so it popped right up in my mind. If you don't have the book, h

Re: no output from the script

On Monday, April 1, 2002, at 08:15 , Joe Echavarria wrote: that he was having problem with the cgi script - amongst other things there is no 'start_html' in it to make sure that it is set up correctly. I would propose something on the order of the script at the end, where I would isolate the t

RE: scp inside perl

sure: I wrote this as a push script to move files from one machine to one or more machines. This script works best if Keys are exchanged, but will also work(Prompting for password) without. Also at http://www.gargiullo.com/scripting/index.cfm #!/usr/bin/perl -w ## # Original script wri

RE: Array question

You could always put them into a hash and then put them into an array later. foreach(@names){ $hash{$_} = 1; } my @array = keys %hash; -Original Message- From: Allison Ogle [mailto:[EMAIL PROTECTED]] Sent: Monday, April 01, 2002 8:08 AM To: a a Subject: Array question Hi, I have

Re: no output from the script

STOP SPAMMING ME --- drieux <[EMAIL PROTECTED]> wrote: > > On Monday, April 1, 2002, at 08:15 , Joe Echavarria > wrote: > > that he was having problem with the cgi script - > > amongst other things there is no 'start_html' in it > to make sure that it is set up correctly. > > I would propo

Re[2]: scp inside perl

take a look at the Net::SCP, Expect and Net::SCP::Expect modules on CPAN. -- Best Regards, Daniel [EMAIL PROTECTED] Monday, April 01, 2002, 6:05:49 PM, Jeff Liu wrote: > Hi Greg, > Thanks for your help. > But I have difficulty to fill in the password. What I like to

Re: Writing Dir Names into a File

On Monday, April 1, 2002, at 06:41 AM, David Gray wrote: > my @fl = grep { $_ ne '.' and $_ ne '..' }, readdir DIR; no comma after the block.

Re: Array question

On Mon, 1 Apr 2002, Allison Ogle wrote: > I don't know how long the list is and eventually in the list some of > the names will repeat. I want to put these names in an array but I > don't want to repeat any names in the array and I want to keep a count > of how many times the name appears in the

get file permissions?

Is it possible to do the reverse of a chmod? To get the permissions of a given file as a number? I'm creating a new file from an old one, and I'd like the new one to have the same permissions as the old one. Is this possible? TIA. - B -- To unsubscribe, e-mail: [EMAIL PROTECTED] For addi

Re: get file permissions?

> Is it possible to do the reverse of a chmod? Yes > To get the permissions of a given file as a number? Same question twice! > I'm creating a new file from an old one, and I'd like the new one to have > the same permissions as the old one. Is this possible? Same question trice! You wanted

RE: scp inside perl

Jeff: I think you have the | in the wrong place. It should be at the end of the line, as : open(SCP,"scp source dest|"); I think there is a way in ssh/scp to set up a similiar thing to an rhosts. This is one way to be coding a password into a script. That is the tradeoff of having some host tru

Re: Array question

Here's my solution. There will be shorter ways. I am new to perl, so this is how did it. At the prompt do $array-prob.pl #!/usr/bin/perl #File name : array-prob.pl my @arr; while(<>) { chomp($_); $field{$_}++; print "$_ $field{$_}\n"; my $set = 0; my $r

Equivalent Linux tool to ppm

Is their a tool similar to ppm for Linux (Unix)? "You use a Windows machine and the golden rule is: Save, and save often. It's scary how people have grown used to the idea that computers are unreliable when it is not the computer at all - it's the operating system that just doesn't cut it." - Li

RE: scp inside perl

Even, I put it like open(SCP,"scp source dest|"), the system still ask me to type in my password. Probably, that's another shell, I mean the ssh login shell is different from the one I run my script. So, I can not send my password from previous shell to new ssh shell. Thanks, Jeff Liu -Orig

An Apology

my apologies for sending long code illustrations. in the future I will post them at: http://www.wetware.com/drieux/CS/lang/Perl/Beginners/ and post up a URL to them. ciao drieux --- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

RE: Equivalent Linux tool to ppm

Sean, Although it doesn't quite work the same as ppm, the cpan command will enable you to install any package you desire. If you've never installed it before, you'll need to use 'perl -MCPAN -e shell;' from the command line, following the directions below. I recall hearing/reading that this comm

Re: Array question

Sorry, there were a couple typos in my earlier response: > %count = (); > foreach $element (@array1) { $count{$element}++ } I should've included the semicolon at the end of the second line. > Your array of unique names is now available from the keys of %count; > the number of occurences of each

Re: Equivalent Linux tool to ppm

> Is their a tool similar to ppm for Linux (Unix)? Yes, CPAN.pm: perl -MCPAN -e 'shell' > [Omitted non-tiny sigblock that entirely dwarfed the > lonely one line question. Sean, do something about > it please! My mailbox grows fast enough thanks :/ ] Jonathan Paton

fork() with no wait()

I'd like to fork my program without waiting for the child to exit. My child will be a sub with an infinite loop, so I'd like the parent to continue on it's merry way. Solutions? -R -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: Equivalent Linux tool to ppm

perl -MCPAN -e shell - Original Message - From: "Sean Hoskin" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, April 01, 2002 11:13 AM Subject: Equivalent Linux tool to ppm > Is their a tool similar to ppm for Linux (Unix)? > > "You use a Windows machine and the golden rule is:

Re: fork() with no wait()

The beginner shines in me... For reaping children, I was thinking of send a signal to the entire group. The gist is: I want to attach a child to a FIFO, then have the parent start other processes that read from the FIFO. The readers must be tricked into thinking they are reading from files.

Re: get file permissions?

Thanks, Jonathan, Drieux! - B __ > Is it possible to do the reverse of a chmod? Yes > To get the permissions of a given file as a number? Same question twice! > I'm creating a new file from an old one, and I'd like the new one to have > the same permissions as the old one.

Re: fork() with no wait()

On Mon, 2002-04-01 at 14:42, Rob Lee wrote: > > I'd like to fork my program without waiting for the child to exit. > > My child will be a sub with an infinite loop, so I'd like the parent to > continue on it's merry way. > > Solutions? > -R If you "fork" without ever waiting on your chil­ dr

site blocking software

Hello, Is there a site freeware site blocking software for IE or netscape. I need this for home use. My ISP is hawk.com and I pay 9.00 per month. __ William Ampeh (x3939) Federal Reserve Board -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EM

Re: Array question

On Monday, April 1, 2002, at 11:11 , Aman Raheja wrote: > $array-prob.pl p1: I loved the $field{$_}++; p2: but since you have stashed it all in a Hash, why not unpack the hash with my @arr = keys(%field); the counter proposal - http:

Increment a Variable

Hi, I was wondering if anyone knew how to increment a variable when the variable is a letter. For example $x="A"; $x++; doesn't work. I'm trying to get $x="B"; Thanks, Mike. _ Get your FREE download of MSN Explorer at http:/

Re: Increment a Variable

On Mon, 2002-04-01 at 15:50, Michael Stearman wrote: > Hi, > > I was wondering if anyone knew how to increment a variable when the variable > is a letter. For example > > $x="A"; > $x++; > > doesn't work. I'm trying to get $x="B"; > > Thanks, > Mike. Works for me, perhaps you could post th

Re: Increment a Variable

> I was wondering if anyone knew how to increment a variable when the variable > is a letter. For example > > $x="A"; > $x++; jep@delta:/ > perl $x = 'A'; print ++$x . "\n"; B jep@delta:/ > Seems to work for me :) Remember the difference between preincrement and postincrement, and what happ

RE: Increment a Variable

works for me. $a = "A"; $a++; print "$a\n"; # prints B what version are you using? ++ is magical on letters in ver 5.500?+ I think. Just remember that -- is not magical on letters, you will always get -1 from that. > -Original Message- > From: Michael Stearman [mailto:[EMAIL PROTECTED]

Re: Increment a Variable

It could be my code. I am using the variable to write to an Excel file in which I want to increment the cell from A1 to B1 to C1, etc. $x="A"; foreach $list(@list) { $cell="$x1"; $worksheet1->write($cell, $list); $x++; } >From: "Michael Stearman" <[EMAIL PROTECTED]> >T

Re: Increment a Variable

On Mon, 2002-04-01 at 16:03, Michael Stearman wrote: > It could be my code. I am using the variable to write to an Excel file in > which I want to increment the cell from A1 to B1 to C1, etc. > > $x="A"; > foreach $list(@list) { > $cell="$x1"; > $worksheet1->write($cell, $list); >

Re: Increment a Variable

> It could be my code. It is, trust me. > I am using the variable to write to an > Excel file in which I want to increment > the cell from A1 to B1 to C1, etc. > Generalising your code: > $x="A"; > for (0..3) { > $cell="$x1"; > print $cell . "\n" > $x++; > } And what do you

Re: Increment a Variable

Micheal, try this" $x = "A"; foreach $list(@list) { $cell = "$x{1}"; //you can't just put a suffix to a variable when you print it..perl will think //you mean $x1.. use $x{whateveryouwanttoadd} for example... $num = 4; print "$sun{th}"; //to make it 4th $worksheet->write($cell,

RE: Increment a Variable

Chas, no personal offense, but that code just looks ugly. I like the way it's originally written by Mike. So what version of perl are you using? perl -v > -Original Message- > From: Chas Owens [mailto:[EMAIL PROTECTED]] > Sent: Monday, April 01, 2002 4:09 PM > To: Michael Stearman > Cc:

RE: Increment a Variable

Good call.. use warnings; use strict; Too bad it took me 3 years to learn the benefits of using that and making it a good habit to start all my programs with it. > -Original Message- > From: Jonathan E. Paton [mailto:[EMAIL PROTECTED]] > Sent: Monday, April 01, 2002 4:14 PM > To: [EMAIL

Re: Increment a Variable

On Monday, April 1, 2002, at 01:03 , Michael Stearman wrote: > $x="A"; > foreach $list(@list) { > $cell="$x1"; > $worksheet1->write($cell, $list); > $x++; > } it's a 'scoping' bug - try $cell = "${x}1"; this will generate your A1 THANKS I have been

RE: Array question

Thanks for your help. I finally got it to work. Allison -Original Message- From: drieux [mailto:[EMAIL PROTECTED]] Sent: Monday, April 01, 2002 3:44 PM To: [EMAIL PROTECTED] Subject: Re: Array question On Monday, April 1, 2002, at 11:11 , Aman Raheja wrote: > $array-prob.pl p1: I l

help please with syntax!

Can someone help me decode this? or if not, please recommend a good reference book or site for my specific needs! thanks i wrote this script for use of active perl installed on win98 and used two modules #!C:\Perl\bin -w use HTML::Parse; use HTML::FormatText; # My question is here, insofar

Style issues (was RE: Increment a Variable)

No offense taken (TMTOWTDI). For debugging purposes I like to be able to see entire functions (and sometimes more than one) on the screen at the same time. With short loops like this one that means keeping it as short and sweet as possible to maximize the amount of code visible at one time. So

Re: Style issues (was RE: Increment a Variable)

> For debugging purposes I like to be able > to see entire functions (and sometimes > more than one) on the screen at the same > time. With short loops like this one that > means keeping it as short and sweet as > possible to maximize the amount of code > visible at one time. Get a bigger monito

RE: Style issues (was RE: Increment a Variable)

That's why you need to stop programming on your Palm Pilot. :) -Original Message- From: Chas Owens [mailto:[EMAIL PROTECTED]] Sent: Monday, April 01, 2002 1:33 PM To: Nikola Janceski Cc: [EMAIL PROTECTED] Subject: Style issues (was RE: Increment a Variable) No offense taken (TMTOWTDI).

calling another perl program and printing output in real time

Hello, I have 2 independent perl programs p1 and p2. p1 calls p2 (using either the system() or `` operators, and p2 will print out status information every 2 seconds or so. How do I set it up such that whenever p2 prints out data, it is printed out by p1 also IN REAL TIME? Thanks. =

Re: site blocking software

On Monday 01 April 2002 02:25 pm, [EMAIL PROTECTED] wrote: > Is there a site freeware site blocking software for IE or netscape.  I need > this for home use. > My ISP is hawk.com and I pay 9.00 per month. If you wish to block out sites of questionable content to protect your children, see "inter

Fwd: SHADOWING TEXT

--- Begin Message --- Hi all,   How do you shadow/hide text. For example I have a small perl program in which it authenticates at launch to access an application:   print "ENTER USER NAME\n";$uname = <>; chomp($uname); print "\n";   print "ENTER PASSWORD\n"; $pwd = <>; #WOULD LIKE TO SHADOW THIS

Re: Fwd: SHADOWING TEXT

Hector Moran wrote: > > How do you shadow/hide text. For example I have a small perl program > in which it authenticates at launch to access an application: > > print "ENTER USER NAME\n"; > $uname = <>; > chomp($uname); > print "\n"; > > print "ENTER PASSWORD\n"; > $pwd = <>; #WOULD LIKE TO SHA

Checking against an assosiative array...

G'day All, Just wondering how I would check the following variable against the hash below? sub read_data { open USER_DATA, "$USER_DATA" or warn "cannot open '$USER_DATA' for reading: $!\n"; flock(USER_DATA, 2) || warn "Can't lock $USER_DATA exclusively: $!"; while( $USER_DATA= ) {

Re: Checking against an assosiative array...

Daniel Falkenberg wrote: >%users = ( > 'username01' => { > 'Comp01' => '$0.00' > }, > 'username02' => { > 'Comp02' => '$0.00' >}, > 'usename03' => { > 'Co

Re: calling another perl program and printing output in real time

http://www.wetware.com/drieux/CS/lang/Perl/Beginners/p1_read_p2.txt On Monday, April 1, 2002, at 02:49 , Roy Peters wrote: > Hello, > > I have 2 independent perl programs p1 and p2. p1 calls p2 (using either > the > system() or `` operators, and p2 will print > out status information every 2 s

RE: scp inside perl

Jeff, For ssh or scp not to ask for your password, you must create and exchange keys. Check out O'Reilly's SSH The Secure Shell. -Mike -Original Message- From: Jeff Liu [mailto:[EMAIL PROTECTED]] Sent: Monday, April 01, 2002 2:18 PM To: Lirot, Gregory; Beginners Subject: RE: scp inside