?type 1222715.pl
use strict;
use warnings;
use Data::Dumper;
my @array = (
    [qw(0a 0b 0c 0d 0e 0f 0g 0h 0i 0j 0k)],
    [qw(1a 1b 1c 1d 1e 1f 1g 1h 1i 1j 1k)],
    [qw(2a 2b 2c 2d 2e 2f 2g 2h 2i 2j 2k)],
    [qw(3a 3b 3c 3d 3e 3f 3g 3h 3i 3j 3k)],
    [qw(4a 4b 4c 4d 4e 4f 4g 4h 4i 4j 4k)],
);

my @array_new;

foreach my $vec (@array) {
    push @array_new,
        [map {myfunc($_)} @$vec];
}

print Dumper(\@array_new);

sub myfunc {
    return "$_[0]_new";
}




?perl 1222715.pl
$VAR1 = [
          [
            '0a_new',
            '0b_new',
            '0c_new',
            '0d_new',
            '0e_new',
            '0f_new',
            '0g_new',
            '0h_new',
            '0i_new',
            '0j_new',
            '0k_new'
          ],
          [
            '1a_new',
            '1b_new',
            '1c_new',
            '1d_new',
            '1e_new',
            '1f_new',
            '1g_new',
            '1h_new',
            '1i_new',
            '1j_new',
            '1k_new'
          ],
          
          ...
        ];

?