hi all
i was going through some perl code i came across this line and i am not getting what is exactly going on ..
$$this{localtion} = GetName->GetVarName("EXE_DIR") ;
what is the red part doing in above code (2 Replies)
All,
Does it matter what perl verios your running when you get syntax errors?
on version 5.6.1 the code works fine, but on 5.8.0 the code gets errors?
#!/usr/bin/perl
#use strict;
#use warnings;
my $mess = 'messages';
my $mess1 = 'messages.1';
my $mess2 = 'messages.2';
my... (13 Replies)
Im new at scripting and im trying to write a script using perl that will make sure there are 2 command line integer arguments and then check if the 2nd argument is greater than the first. i believe im close but still receive my error message even when i have 2 arguments and the second part gives me... (6 Replies)
Hi,
I am a newbie to PERL and working on a script. When running it I get a lot of compilation errors.
The actual command in the program (which is within a case structure) is given below
# This gives the actual count of inquires from a log file (It works fine when I type this on the... (2 Replies)
I'm just trying to confirm that I understand someone's code correctly.
If someone has code that says:
$foo ||= mysub();
I'm assuming that it means if $foo is nothing or undef, then assign it some value via mysub(). If I'm wrong on this, please let me know.
Also, what's the difference... (4 Replies)
Hi,
i am running this code but i am getting syntax error
#!/usr/bin/perl
use warnings;
use strict;
use XML::LibXML;
use XML::LibXML::Reader;
use Data::Dumper;
my $file;
open( $file, 'DTC_Specification_transformed.xml');
my $reader = XML::LibXML::Reader->new( IO => $file ) or die... (1 Reply)
Hallo everybody,
I have a following problem - I'm doing a map funciont to fill in a HTML table and I want to use some radiobutton groups. Unfortunatelly, they are grouped by names, so I have to add some "counter" that will divide one row from another, and I'm using CGI.pm for generating the... (3 Replies)
Greetings!
Here's what I believe is a "simple one" for the community tonight ;)
What I'm trying to do is assign a "true/false" value to a variable depending upon whether a named process (some-process) exists; and then test for this value in the succeeding logic. I banged my head against the... (2 Replies)
Discussion started by: LinQ
2 Replies
LEARN ABOUT CENTOS
findbin
FindBin(3pm) Perl Programmers Reference Guide FindBin(3pm)NAME
FindBin - Locate directory of original perl script
SYNOPSIS
use FindBin;
use lib "$FindBin::Bin/../lib";
or
use FindBin qw($Bin);
use lib "$Bin/../lib";
DESCRIPTION
Locates the full path to the script bin directory to allow the use of paths relative to the bin directory.
This allows a user to setup a directory tree for some software with directories "<root>/bin" and "<root>/lib", and then the above example
will allow the use of modules in the lib directory without knowing where the software tree is installed.
If perl is invoked using the -e option or the perl script is read from "STDIN" then FindBin sets both $Bin and $RealBin to the current
directory.
EXPORTABLE VARIABLES
$Bin - path to bin directory from where script was invoked
$Script - basename of script from which perl was invoked
$RealBin - $Bin with all links resolved
$RealScript - $Script with all links resolved
KNOWN ISSUES
If there are two modules using "FindBin" from different directories under the same interpreter, this won't work. Since "FindBin" uses a
"BEGIN" block, it'll be executed only once, and only the first caller will get it right. This is a problem under mod_perl and other
persistent Perl environments, where you shouldn't use this module. Which also means that you should avoid using "FindBin" in modules that
you plan to put on CPAN. To make sure that "FindBin" will work is to call the "again" function:
use FindBin;
FindBin::again(); # or FindBin->again;
In former versions of FindBin there was no "again" function. The workaround was to force the "BEGIN" block to be executed again:
delete $INC{'FindBin.pm'};
require FindBin;
AUTHORS
FindBin is supported as part of the core perl distribution. Please send bug reports to <perlbug@perl.org> using the perlbug program
included with perl.
Graham Barr <gbarr@pobox.com> Nick Ing-Simmons <nik@tiuk.ti.com>
COPYRIGHT
Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved. This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
perl v5.16.3 2013-03-04 FindBin(3pm)