use strict;
use warnings;
while(<FGLCS>){
chomp;
my ($scfd_name_frgt,$stt_pst_frgt,$stp_pst_frgt,$lgh_frgt)=split /\t
+/,$_;
$scfd_name_frgt=reverse $scfd_name_frgt;
push @{$frgtlocs{$scfd_name_frgt}},($stt_pst_frgt,$stp_pst_frgt,$lgh
+_frgt);
}
If @{$frgtlocs{$scfd_name_frgt}} does not exist, Perl just creates an array and you are done.
UPDATE: Also looking at these two lines:
@{$scfd_name_frgt}=($stt_pst_frgt,$stp_pst_frgt,$lgh_frgt);
$frgtlocs{$scfd_name_frgt}=\@{$scfd_name_frgt};
They can be abbreviated using square brackets to create a reference to an array:
$frgtlocs{$scfd_name_frgt}=[$stt_pst_frgt,$stp_pst_frgt,$lgh_frgt];
There is no need to create a named array first and then store a reference to it (if that is what you want). |