#!/usr/bin/perl use strict; use warnings; use Data::Dumper; my %fastas = ( 'ENSG0000017672' => 'eureka', ); my $gene_name = 'ENSG0000017672'; print 'test1: ', $fastas{ENSG0000017672}, "\n"; print 'test2: ', $fastas{$gene_name}, "\n"; local $Data::Dumper::Useqq = 1; print Data::Dumper->Dump([$gene_name], ['gene_name']);