Acme-CPANModules-ReadingFilesBackward
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NAME
Acme::CPANModules::ReadingFilesBackward - List of modules to read files
backward (in reverse)
VERSION
This document describes version 0.003 of
Acme::CPANModules::ReadingFilesBackward (from Perl distribution
Acme-CPANModules-ReadingFilesBackward), released on 2023-10-31.
DESCRIPTION
Probably the fastest way, if you are on a Unix system, is to use the tac
command, which can read a file line by line in reverse order, or
paragraph by paragraph, or character by character, or word by word, or
by a custom separator string or regular expression. Example for using it
from Perl:
open my $fh, "tac /etc/passwd |";
print while <$fh>;
Another convenient way is to use the Perl I/O layer PerlIO::reverse. It
only does line-by-line reversing, but you can use the regular Perl API.
lib/Acme/CPANModules/ReadingFilesBackward.pm view on Meta::CPAN
our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2023-10-31'; # DATE
our $DIST = 'Acme-CPANModules-ReadingFilesBackward'; # DIST
our $VERSION = '0.003'; # VERSION
our $LIST = {
summary => 'List of modules to read files backward (in reverse)',
description => <<'_',
Probably the fastest way, if you are on a Unix system, is to use the **tac**
command, which can read a file line by line in reverse order, or paragraph by
paragraph, or character by character, or word by word, or by a custom separator
string or regular expression. Example for using it from Perl:
open my $fh, "tac /etc/passwd |";
print while <$fh>;
Another convenient way is to use the Perl I/O layer <pm:PerlIO::reverse>. It
only does line-by-line reversing, but you can use the regular Perl API. You
don't even have to `use` the module explicitly (but of course you have to get it
lib/Acme/CPANModules/ReadingFilesBackward.pm view on Meta::CPAN
=head1 NAME
Acme::CPANModules::ReadingFilesBackward - List of modules to read files backward (in reverse)
=head1 VERSION
This document describes version 0.003 of Acme::CPANModules::ReadingFilesBackward (from Perl distribution Acme-CPANModules-ReadingFilesBackward), released on 2023-10-31.
=head1 DESCRIPTION
Probably the fastest way, if you are on a Unix system, is to use the B<tac>
command, which can read a file line by line in reverse order, or paragraph by
paragraph, or character by character, or word by word, or by a custom separator
string or regular expression. Example for using it from Perl:
open my $fh, "tac /etc/passwd |";
print while <$fh>;
Another convenient way is to use the Perl I/O layer L<PerlIO::reverse>. It
only does line-by-line reversing, but you can use the regular Perl API. You
don't even have to C<use> the module explicitly (but of course you have to get it
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