Re: New to Perl

[Utilitarian]

in reply to New to Perl

Two One things catches my eye straight away....

• Where do you assign a value to $query?
• To define %hash you need to map {$hash{$_}=1}@file_data

One final issue you should use strict and use warnings to catch typos and to ensure you have scoped your variables

Update corrected my half asleep error, too little testing of code and coffee

[chromatic]

To define %hash you need to map {$hash{$_}=1}@file_data

Did the querent update the OP? This works just fine (and is less abusive):

my %hash = map { $_ => 1 } @file_data;

[rolandomantilla]

The $query is suppose to be the key for the hash which will be the the ID from the FASTA sequence

[chromatic]

Is the solution as simple as using chomp on the lines of your array?