How to learn Perl

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Top Forums Shell Programming and Scripting How to learn Perl
# 8  
Old 10-30-2002
Here is a downloadable version of Perl tutorial in PDF or HTML.

BTW, I get several errors when I try to run perl on my systems. Here is the program.

# cat

use strict; # important pragma
use warnings; # another pragma
print "What is your username? "; # print out question
my $username; # "declare" a variable
$username = <STDIN>; # ask for a username
chomp($username); # remove "new line"
print "Hello, $username.\n"; # print out the greeting

*** Here are the errors.

# ./
Can't locate in @INC (@INC contains: /opt/perl5/lib/5.00502/PA-RISC1.1
/opt/perl5/lib/5.00502 /opt/perl5/lib/site_perl/5.005/PA-RISC1.1 /opt/perl5/lib
/site_perl/5.005 .) at ./ line 3.
BEGIN failed--compilation aborted at ./ line 3.

Here is my version of PERL.

# perl -v

This is perl, version 4.0

$RCSfile: perl.c,v $$Revision: $$Date: 1993/02/05 19:39:30 $
Patch level: 36

Copyright (c) 1989, 1990, 1991, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 4.0 source kit.


Last edited by Kelam_Magnus; 10-30-2002 at 11:55 AM..
# 9  
Old 10-30-2002
My favorite site for perl type info is
# 10  
Old 10-30-2002
Originally posted by Kelam_Magnus

# ./
Can't locate in @INC (@INC contains: /opt/perl5/lib/5.00502/PA-RISC1.1
/opt/perl5/lib/5.00502 /opt/perl5/lib/site_perl/5.005/PA-RISC1.1 /opt/perl5/lib
/site_perl/5.005 .) at ./ line 3.

Here is my version of PERL.

# perl -v

This is perl, version 4.0

Smilie [/B]
1) update your perl version. use the most current stable 5.8 i believe and your problem is solved.

2) according to your error your version of perl does not have the perl module for strict installed.

you can get perl modules from very easy to use and navigate after you familurize yourself with the site.

also note that you should use #!/usr/bin/perl -w

when perl is installed it installes the binarys in a few locations and one copy is in /usr/bin. the -w switch is the warnings switch. just a bit easier instead of defineing the use warning; pragma
# 11  
Old 10-30-2002
Thanks Perderabo, it works now. Although I don't need the strict or warning lines, they err out.

My latest version available for HPUX from my internal depot is:

perl B.5.6.1.C Perl Programming Language

here's what I get after loading.
# perl -v

This is perl, version 5.005_02 built for PA-RISC1.1
# 12  
Old 10-31-2002
[hostname]/home/i_am_anti_coolness$perl -v

This is perl, v5.8.0 built for sun4-solaris

I can only assume you checked the actual homepage of perl for the most current stable release?

either way 5.6 i know has the (solaris 8 by default ships w/ 5.4 which has strict.
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