From owner-freebsd-questions@freebsd.org  Wed Dec 26 14:21:27 2018
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id B875E13530F7
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Wed, 26 Dec 2018 14:21:27 +0000 (UTC) (envelope-from iam@sdf.org)
Received: from mx.sdf.org (ol.sdf.org [205.166.94.20])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "mx.sdf.org", Issuer "Let's Encrypt Authority X3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id F05EF85019
 for <freebsd-questions@freebsd.org>; Wed, 26 Dec 2018 14:21:26 +0000 (UTC)
 (envelope-from iam@sdf.org)
Received: from sdf.org (IDENT:iam@sdf.lonestar.org [205.166.94.16])
 by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id wBQELE8K018267
 (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256 bits) verified NO)
 for <freebsd-questions@freebsd.org>; Wed, 26 Dec 2018 14:21:14 GMT
Received: (from iam@localhost)
 by sdf.org (8.15.2/8.12.8/Submit) id wBQELETd006832
 for freebsd-questions@freebsd.org; Wed, 26 Dec 2018 14:21:14 GMT
Date: Wed, 26 Dec 2018 14:21:14 GMT
From: iam@sdf.org
Message-Id: <201812261421.wBQELETd006832@sdf.org>
To: freebsd-questions@freebsd.org
Subject: why have csh as well as tcsh?
X-Rspamd-Queue-Id: F05EF85019
X-Spamd-Bar: ++
Authentication-Results: mx1.freebsd.org
X-Spamd-Result: default: False [2.53 / 15.00]; ARC_NA(0.00)[];
 NEURAL_HAM_MEDIUM(-0.38)[-0.377,0]; MIME_TRACE(0.00)[0:+];
 TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.79)[0.791,0];
 MIME_GOOD(-0.10)[text/plain];
 PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org];
 TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1];
 RCVD_COUNT_THREE(0.00)[3]; RCVD_TLS_LAST(0.00)[];
 MX_GOOD(-0.01)[cached: mx.sdf.org];
 NEURAL_SPAM_LONG(0.14)[0.139,0];
 RCVD_IN_DNSWL_NONE(0.00)[20.94.166.205.list.dnswl.org : 127.0.10.0];
 FROM_NO_DN(0.00)[]; R_SPF_NA(0.00)[]; DMARC_NA(0.00)[sdf.org];
 FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[];
 SUBJECT_ENDS_QUESTION(1.00)[];
 ASN(0.00)[asn:14361, ipnet:205.166.94.0/24, country:US];
 MID_RHS_MATCH_FROM(0.00)[];
 IP_SCORE(0.09)[asn: 14361(0.52), country: US(-0.08)]
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 26 Dec 2018 14:21:27 -0000

what's the reason to have two options for shells
during the installation when the manual manages
to the same for both?