If you are using Perl 5.8 (because you have to use B::Deparse 0.61 or higher), you can also do this with Storable: 
# slightly modified from Storable docs
use strict;
use warnings;
use Safe;
use Storable qw(freeze thaw);

my $safe = Safe->new();
$safe->permit(qw(:default require));

local $Storable::Deparse = 1;
local $Storable::Eval = sub { $safe->reval($_[0]) };
my $serialized = freeze(sub { return 'hello world' });
my $code = thaw($serialized);
print $code->(), "\n";

[download]

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to (jeffa) Re: save to file: $h{'sub'}=sub{..}; by jeffa
in thread save to file: $h{'sub'}=sub{..}; by Anonymous Monk

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