http://www.perlmonks.org?node_id=1005633


in reply to convert rows to columns

#! perl -slw
use strict;
use Data::Dump qw[ pp ];

my @out;
while( <DATA> ) {
    chomp;
    my $n = 0;
    $out[ $n++ ] .= $_ for unpack '(A2)*', $_;
}

pp \@out;

__DATA__
abcdef
abcdef
abcdef
abcdef

[download]

Produces:

C:\test>junk.pl
["abababab", "cdcdcdcd", "efefefef"]

[download]
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In Section Seekers of Perl Wisdom