Suwen,
da gave a good reply to your question but a few corrections were not pointed out. First, on your hash definition: 
my %CountryCode = { 
   'com','Comercial', 
   'uk','The United Kingdom',
}  # a hash of country name

[download]
he corrected it as: 
my %CountryCode = (
   'com','Comercial',
   'uk','The United Kingdom'
);

# a hash of country names

[download]
Note two things: 1) da changed your {}'s to ()'s (squiggles to parens) when intializing the hash; and 2) you left off a semicolon at the end of the statement.

Another thing not mentioned is your snippet: 

if ($Country == $key){ #get the key of country name
   $CountryName = $CountryCode($key); #assign the key value to a varia
+ble
}

[download]
You should use ($Country eq $key) and not ($Country == $key).
eq is used for text comparison, == for numeric. suaveant's comment about sqiggles instead of parens applies to the $CountryCode($key) portion which should read $CountryCode{$key}.

In reply to Re: How to do with this hash? by jlongino
in thread How to do with this hash? by Suwen

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