I am looking for a more efficient means of getting data from a directory of tab separated files into hash. The directory is full of files in the format:
key\tvalue0\tvalue1\tvalue2\nkey\tvalue0\tvalue1\n
... the individual files are small (~10 lines) but the directory can be fairly large (10,000 files).
I am sure there is a better way to do it than the way i have been, so i come to the monks to find the best way. Here is what i have been doing.
my $dir = "/Path/to/a/data/directory";
my %hash;
my @ls = `ls $dir`;
foreach (@ls){
chomp;
next if /\~$/ || !$_;
my $file = $_;
my $info = `cat $dir/$_`;
my (@lines) = split(/\n/,$info);
for (@lines){
s/^\s+//; next if /^\#/ || !$_;
my ($key, @values) = split(/\t/);
$hash{$file}{$key} = [@values];
}
}
if there is a better way, glob or readdir, please give an example of how i should adapt my code?
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