Hey, I am trying to make my module aware of version number that would not need to be hardcoded in the module but instead initialized in a form of env variable in the program that actually calls all other perl scripts that make use of this module: 
 
$ENV{"VER"} = "3.0";

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In the module I planned to give a life to a global variable on the top of the module and use it across all subs/methods as follows: 
 
my $ver_dir = "/opt/SAT/" . $ENV{"VER"};

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$ENV{"VER"} however is undef at this stage yet. I would need to actually use it in subs/methods wherever I need to resolve path. It does seem to work in this way although that would cause me some real pain. Other way I thought of was to declare $ver_dir, as global var, as follows: 
 
my $ver_dir =  set_ver_dir();

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wherea set_root_dir would be: 
sub set_ver_dir {
 my $path = $FindBin::Bin;
 $path =~ /\opt\/SAT\/(\d*\.\d*)\//;
 my $ver = $1;
 return "/opt/SAT" . $ver 
}

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Though such trick for making global vars within a module a result of one of module's sub does not seem to work. Any suggestions? Mind, tha I would NOT like to have it hardcoded in the module. Nor use any symlinks such us /opt/SAT/live or /opt/SAT/current that would point to the correct version on the file system.

Thank you.

In reply to dynamiclly assigning values to global variables in modules by bazi

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