unshift makes it simpler: 
#!/usr/bin/perl
use strict;
use warnings;
use Tie::File;

my $file = "file.txt";
my $insert = shift @ARGV;
chomp $insert;
my @lines;

tie @lines, 'Tie::File', $file or die $!;
unshift @lines, $insert; # more simple, isn't it?
untie @lines;

[download]
best regards,
neniro

In reply to Re: Re: writing to the top of a file by neniro
in thread writing to the top of a file by Anonymous Monk

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