in reply to Using Multiple Modules

Specify the whole path as "lib", and only the file as "required". As use executes at compile time, be sure to set the variables in a BEGIN block: 
my ($codes_dir, $runner_lib);
BEGIN {
    $codes_dir  = '...';
    $runner_lib = '...';
}
use lib "$codes_dir/perl_libs", "$runner_lib/runner_libs";
require 'perl_db_interface.pl';
require 'CodesModule.pm';

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Note that normally, you shouldn't require files but packages: 

require CodesModule;

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Why don't you use them directly, anyway? 

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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Re^2: Using Multiple Modules
by hmeharward (Novice) on Jan 21, 2016 at 21:02 UTC

    Thank you! I will try this instead. I was a little confused on what should be required but this clears things up!

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Re^2: Using Multiple Modules
by hmeharward (Novice) on Jan 21, 2016 at 21:25 UTC

    Everytime I've tried to use them directly I haven't been successful. The code compiles but stops when it gets to the first subroutine

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      How does the .pm export its subroutines? If it uses Exporter, you need to run 
      require CodesModule;
'CodesModule'->import;

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      Or you might even need to name the subroutines as the import's parameters if the module doesn't use @EXPORT but @EXPORT_OK.

      Update: if you switched to 

      use CodesModule;

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      you need to name the subs for @EXPORT_OK in this way: 

      use CodesModule qw{ func1 func2 };

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      ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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        Thank you so much for your help. In my code I use .pm this way:

         use runner_libs::CodesModule qw(exit_gracefully subprogram_runner warning_or_failure open_or_fail error_display cal_time start_time end_time trim CheckError);

        And the .pm exports this way: 

         package CodesModule;
use Exporter 'import';
@EXPORT_OK = qw(exit_gracefully subprogram_runner warning_or_failure o
+pen_or_fail error_display cal_time start_time end_time trim CheckErro
+r);

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