Re^2: Hashes of arrays populated from a Text File


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Re^2: Hashes of arrays populated from a Text File

by Laurent_R (Canon)

on Feb 26, 2014 at 19:05 UTC ( [id://1076302]=note: print w/replies, xml )

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in reply to Re: Hashes of arrays populated from a Text File
in thread Hashes of arrays populated from a Text File

You must be kidding, sundialsvc4. Using a database for such a simple task is just plain overkill. You can obtain the desired result with just a simple Perl one-liner:

$ cat  test_file.txt
Name1 1234
Name2 9999
Name1 5514
Name3 5415
Name2 6419

$ perl -ne 'my ($key, $val) = split; $hash{$key} .= " $val"; END { pri
+nt "$_ => $hash{$_} \n" for keys %hash;}' test_file.txt
Name3 =>  5415
Name1 =>  1234 5514
Name2 =>  9999 6419
[download]

The result is there even before you start populating your database.