Re: saving hashes to a file

On Thu 19 Jun, Colin Foster wrote:
> Hi All,
> 
> Is there a way of saving hashes to a file and then retrieving them from
> the file?
> 
> Colin.
> 
There are 1001+ ways but a simple way is:

To save:

foreach (keys %hash) { print FILE "$_=$hash{$_}\n" }

To read:
while (<FILE>) {
  chomp;
  ($k,$v) = split /=/;
  $hash{$k} = $v;
}

I leave the opening and closing of the FILE to the reader.  If the hash
value contains binary data and/or multiple lines then encode/decode
the value in some suitable form, likewise for the key if necessary.

Richard


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