PerlIO::reverse - Reads lines backward
open my $rev, '<:reverse', 'foo.txt'; print while <$rev>; # print contents reversely
The :reverse layer reads lines backward like tac(1).
:reverse
tac(1)
Here is a minimal implementation of tac(1).
#!/usr/bin/perl -w # Usage: $0 files... use open IN => ':reverse'; print while <>; __END__
This layer cannot deal with unseekable filehandles and layers: tty, :gzip, :dir, etc.
:gzip
:dir
This layer is partly incompatible with Win32 system. You have to call binmode($fh) before pushing it dynamically.
PerlIO::Util.
Goro Fuji (藤 吾郎) <gfuji (at) cpan.org>
Copyright (c) 2008, Goro Fuji <gfuji (at) cpan.org>. Some rights reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install PerlIO::Util, copy and paste the appropriate command in to your terminal.
cpanm
cpanm PerlIO::Util
CPAN shell
perl -MCPAN -e shell install PerlIO::Util
For more information on module installation, please visit the detailed CPAN module installation guide.