=head1 SYNOPSIS
-lei ls-external [OPTIONS]
+lei ls-external [OPTIONS] [FILTER]
=head1 DESCRIPTION
-List configured externals.
+List configured externals. If C<FILTER> is given, restrict the output
+to matching entries.
=head1 OPTIONS
=over
+=item -g, --globoff
+
+Do not match C<FILTER> using C<*?> wildcards and C<[]> ranges.
+
+=item --local
+
+Limit operations to the local filesystem.
+
+=item --remote
+
+Limit operations to those requiring network access.
+
=item -z, -0
Use C<\0> (NUL) instead of newline (CR) to delimit lines.