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grep: add -R alias for -r #820

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merged 1 commit into from
Nov 18, 2024
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grep: add -R alias for -r #820

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12 changes: 7 additions & 5 deletions bin/grep
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ use File::Spec;
use File::Temp qw();
use Getopt::Std;

our $VERSION = '1.016';
our $VERSION = '1.017';

$| = 1; # autoflush output

Expand Down Expand Up @@ -88,7 +88,7 @@ sub VERSION_MESSAGE {

sub usage {
die <<EOF;
usage: $Me [-IincwsxvHhLlFguraqT] [-e pattern] [-A NUM] [-B NUM] [-C NUM]
usage: $Me [-IincwsxvHhLlFguRraqT] [-e pattern] [-A NUM] [-B NUM] [-C NUM]
[-m NUM] [-f pattern-file] [pattern] [file...]

Options:
Expand Down Expand Up @@ -243,8 +243,9 @@ sub parse_args {
}
@ARGV = @tmparg;

getopts('IinC:cwsxvHhLlguraqTFZm:A:B:', \%opt) or usage();
getopts('IinC:cwsxvHhLlguRraqTFZm:A:B:', \%opt) or usage();

$opt{'r'} ||= $opt{'R'};
if (defined $opt{'m'} && $opt{'m'} !~ m/\A[0-9]+\z/) {
die "$Me: invalid max count\n";
}
Expand All @@ -261,6 +262,7 @@ sub parse_args {

unless (length $pattern) {
$pattern = shift @ARGV;
usage() unless defined $pattern;
push @patterns, $pattern;
}
unless ($no_re) {
Expand Down Expand Up @@ -544,7 +546,7 @@ grep - search for regular expressions and print

=head1 SYNOPSIS

grep [-IincwsxvhHlLFiguraqT] [-e pattern] [-A NUM] [-B NUM] [-C NUM]
grep [-IincwsxvhHlLFiguRraqT] [-e pattern] [-A NUM] [-B NUM] [-C NUM]
[-m NUM] [-f pattern-file] [pattern] [file ...]

=head1 DESCRIPTION
Expand Down Expand Up @@ -660,7 +662,7 @@ value of the Perl magic scalar $. (whose documentation is in L<perlvar>).

Suppress diagnostic messages to the standard error.

=item B<-r>
=item B<-R> and B<-r>

Recursively scan directories. This option causes B<grep> to
descend directories in a left-first, depth-first manner and search
Expand Down
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