Using Tie::File:

#! perl
use strict;
use warnings;
use Data::Dump;
use Tie::File;

my    @array = ('x', 'y', 'z');
dd    @array;
tie   @array, 'Tie::File', 'data.txt';
dd    @array;
untie @array;
dd    @array;

[download]

With file data.txt as follows:

AAA
BBBBBB
C
DDDD

[download]

Output:

14:32 >perl 378_SoPW.pl
("x", "y", "z")
("AAA", "BBBBBB", "C", "DDDD")
("x", "y", "z")

14:32 >

[download]

So, @array neither retains the values of the file, nor does it fall empty. Rather, it resumes the values it had before the tie.

Hope that helps,

Athanasius <°(((>< contra mundum

In reply to Re: Tie::File function by Athanasius
in thread tie::file function by PriNet

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