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script/sort-by-lines  view on Meta::CPAN

        'numeric-sort|n' => \$Opts{numeric},
        'reverse|r'      => \$Opts{reverse},
        'help|h'        => sub {
            print <<USAGE;
Usage:
  sort-by-lines [OPTIONS]... FILE1 FILE2

Examples:

  # Sort by length of lines
  % sort-by-lines -n file.txt <(perl -nE'say length' file.txt)

Options:
  --ignore-case, -f
  --numeric-sort, -n
  --reverse, -r

For more details, see the manpage/documentation.
USAGE
            exit 0;
        },

script/sort-by-lines  view on Meta::CPAN

=head1 VERSION

This document describes version 0.002 of sort-by-lines (from Perl distribution App-SortByLines), released on 2019-05-18.

=head1 SYNOPSIS

 % sort-by-lines [OPTION]... FILE1 FILE2

Sample command:

 % sort-by-lines file.txt <(perl -nE'say length' file.txt)

You can use C<"-"> (in at most one of the files) to mean standard input. Tip:
You can use process substitution in bash.

Sample input file F<file.txt>:

 one
 two
 three
 four