G'day satya_rockstar,

Welcome to the monastery.

"How do I break the if . I know I cant use a if in a template. How do I break it ?"

I don't know what you mean by "break the if". Templates can have conditionals (as well as other programming constructs): for instance, take a look at Template::Toolkit's syntax. What templating system are you using?

Furthermore, the code you've posted has so many problems, it's difficult to know what you're actually trying to do.

• "use GetOpt::Long;": not a module I'm familiar with — you probaly mean Getopt::Long; even assuming a simple typo, how does that module relate to any of the other code you posted?
• "my template =": probably another typo (i.e. should be $template) but could be part of your (undisclosed) template syntax.
• "if($s_version eq "s8") ...": even outside of a hashref definition, this is incorrect syntax.
• ""\${version}/$group"": use of scalarrefs (here and in few other places) in this manner looks very wrong; however, you've shown insufficient code to determine what was intended.
• ""\${s_version/${exe}/$group"": another syntax error (mismatched braces).
• "} }}}": poor layout makes this difficult to read but it does look like one too many closing braces.

I recommend you first read "perlintro - Perl introduction for beginners" and learn the basic syntax of the language.

Next, "perldsc - Perl data structures intro" will provide information on building, accessing and modifying a complex Perl data structure.

You also need to understand that we can't really help you if you leave out key information or post incomplete and syntactically incorrect code (such as the examples I've already highlighted). Please read "How do I post a question effectively?" for details on this.

Here's my best guess at the type of thing you're trying to achieve:

#!/usr/bin/env perl -l

use strict;
use warnings;

use Data::Dump;

my $template = {
    global => {
        variables => {
            variant => 10,
            dir => 'root',
        },
    },
};

for (qw{s8 s9}) {
    print "*** Version: $_ ***";
    $template->{global}{variables}{version} = $_;

    if ($template->{global}{variables}{version} eq 's8') {
        $template->{global}{variables}{base} = "$_/group";
    }
    else {
        $template->{global}{variables}{base} = "$_/exe/group";
        $template->{global}{variables}{exe} = 'exe_state';
    }

    dd $template;
}
[download]

Output:

*** Version: s8 ***
{
  global => {
    variables => { base => "s8/group", dir => "root", variant => 10, v
+ersion => "s8" },
  },
}

*** Version: s9 ***
{
  global => {
    variables => {
      base => "s9/exe/group",
      dir => "root",
      exe => "exe_state",
      variant => 10,
      version => "s9",
    },
  },
}
[download]